Tuesday, March 1, 2011

Unix Questions


How to open a Database using Unix Command Please Do Reply
how do display only hidden files in unix?
following two file are file a file b 110 aab 330 xxl i want the output like file a fileb 110 xxl 330 aab give solution ?
how to find multiple string?
unix command how to dispaly no of records in oracle?
finding the presence of a word in a list of 'n' files (pattern matching)
command to view process running?
command to show the space allocation of files?
command to display different lines that are found when compare two files?
how do you move a backgrounnd job to forward?
1)what is grep|sort give example? 2)what are the test commands
How will you know who are the users logged in to the system before 15 minutes?
How to find and replace the below command?
What is LILO?
what is Online(STM) and offline diagnostics in HP-UX?
how to make IGNITE-BACKUP in HP-UX?
What is clustering in HP and how it's work?
what is the difference between npar and vpar in HP-UX?
what is the default signal kill in unix?
How many bits use for MAC address?
What is the protocol for PING command?
Which is the command used to find out currently executing Process in UNIX?
What is the output of : $ ps-e $ ps-a commands
How to check whether some services are running in another server or not? Suppose i am currently in a server named A.I want to check whether some services are running in server B without logging into the server B.
By using which command we can find the CPU utilization time?
How to find the files that are accessed before 10 minutes?
What is the difference between pipe and xargs?
A file has 1000 lines and i want to display only 1st line how to do it? pls ..tel me
Interviewer: Lets say there is a partition of 100GB. When i tried to create a file using touch command, under any directory, it was unable to create the file- '100% full disk space'. I calculated the size of each and every directory on that partition mannually by adding each file size & in came out to be total size 50GB. Then where is the remaining 50GB ? why it is showing disk space 100% full in 'df -h' command?
How can i know my Filesystem and its current usage in my prod UNIX system?
What is an Unix command to convert HEX value to ASCII value located in any flat file.
what is the cmd to remove the comment lines from a file and to display the original text without comments? thanks in advance......
what is the cmd to display the last exit status in UNIX?
to list a particular line in the file
What is the different between UNIX command and UNIX shell script?
hi i have directories within the directory. Now i want to copy the directory along with all directories included in it to one location by using copy command? what is the command
how will you convert a general file to a hidden file?
how will you login one server's shell prompt to an another server?
in a growing log file how will you see the 1st 99 lines?
1-how will you display a file whose name is starting with '- '? 2-how will you add a patten at end of every line in vi editor?
29. How to display top 10 users Who | head -10 | wc –w
use of ls command
How to check the flavor of UNIX?
i have one column with data smith john michale the o/p should be smith,john,michale how we do in unix
write grep commands to select the lines that have exactly two characters
How can I protect my process from others to kill
What will be the result if we run the command #find /tmp - mtime -2 and #find /tmp -mtime +2
How to write the program on full-duplex communication using 2 FIFOs
Where LOG fiels resides in AIX and pls tel me how to remove the log file
when we installing aix os the ssh installed default?
What is shrinking file system in AIX where it actually resides?
If JFS file system is 100% full how we can increase the file system ?
What is the difference between NFS 3 and NFS 4? What are new features added in NFS4?
how to use grep command to list find the records of a file containg 10 different strings
how to find the 51th record of a file containing 100 records in unix.
what is the difference between SED and GREP ? Which one is more better and why?
What are the general Commands in using Unix OS for a beginner? how many commands you know in that?
what is the difference between KILL and KILL -9?
How to display a file name which has zero bytes in size.
What is difference between SSH V1 and SSH V2? What are drawbacks of SSH V2?
What is the number of the masked code ee@?
How i'll delete a particular line from the file? Please give answer as soon as possible. Thanks in advance.
Suppose you have a scheduling chain where the process 1 is a predecessor of the process 2 and both of them are scheduled every Monday at 8.00pm. Will I find execution log of process 1 every Tuesday morning? And what about the other one? Why?
What is a "parameter card" and what is useful for?
What does "bulk loading of a table" mean? Can you describe advantages or disadvantages of using these features?
What is RC (return code)? What is useful for? Which are the common values?
Sorry to all Technical person for mistake of Question. Now i am post currect question Why copied file permission is changed in destination. When i give all permission i.e 777 to file and copy that to other location in destination the permission is 755. But if give permission 555 in destination that file permission is 555 and if give permission 444 to file after copy in destination the file permission is 444. These all are happening in normal user. How the umask value is calculate here really i am not understand. Please write the proper answer. Thanks in Advance
what is the functionality of kernel in unix architecture?
How to install scsi driver in unix? give me explanation clearly?
what is the command to print last 8 lines of any text file.
what is ls -ltd?
Why do inode number start from 1 and not 0 ?
What is the difference between a shell variable that is exported and the one that is not exported?
c program to implement the unix or linux command to implement ls -l >output.txt
1)How to schedule a job,that will periodically execute in second by crontab? 2)I know only second specific time to execute the job. like 10 10 * * * sleep 40&&ps -l>/dev/pts/1 It will execute at 10:10:40 AM but do not know how to execute 15 second,30 second so on at 10:10 am.
How do you use Unix for Backend Testing ?
what is the process id for kernel process?
What is procedure to configure Mirror rootvg in HP-UX?
What is Quorum Group? and Quorum Disk?
What is the procedure to configure MC/SG Cluster services in HP-UX 11i v3 OS Environment?
how to edit the network interface device type in container(zone) in solaris 10?
Hi All, Can you please let me know how to grep for a particular pattern in unix. I want to print the dates from the file exp.txt. the date pattern is DD:MM:YYYY, I just want to print all the dates from the file exp.txt.
if we create a file, in that 10 rows(means 1,2,....9,10 like). i want 7 row exactly, which command use in unix? plz send this question.
. Using sed and grep, write a command which lists files and directories with following properties: (i) created in 1999 (ii) with user's as owner and group
What is semaphone?
how to create a file system quota in HP-UX?
How to set sticky bit, or it have any seperate directory to create sticky bit in sunfir servers. Please help me , i don't no the exact answer?
how many internal commands is there in UNIX?
How does one process we can start an executable file? How to get the PID process, which we started?
How can we "forked" process in UNIX? How then recognize in any of the branches we?
virtual terminal protocol is an example of which layer and works with which layer?
Need a Code snippet about how sharing is happening between Parent and Child threads in OS?
can we use cat command as an editor ..???
Where can I get the free download of Unix by Yeswant Kanetkar?
Which RAID Levels supported by LVM?
How to write the program on full-duplex communication on biderctional(e.g using two pipes)
why unix commands can be divided into internal and external commands?
why unix operating system provides more security than other operating systems?
What is mean by Mac os? Why it is named as like that? Which purprose it is using? Please answer me. Advance thanks.
what is the use of ls -l command & what is the information it gives about user ?
How to find the version details of unix? if any application is installed in unix OS how to find the version of that application is it possilbe or not? pls let me know cmd in detail.
What is file constructing in UNIX/AIX ?
If Media Server fails. What are the steps to be followed? Can anyone please reply for this question Thanks, Ganesh
What is an Environment Variable?
Write a grep (or grep) command that selects the lines from a file that have exactly three characters.
System A can contact system B, but not in reverse, not firewall, not tcp wrappers, what is the reason ?
describe the escaping sequence characteres in unix
what is mean by kernal?
tell me similarities between thread and process
Assume the following files are in the working directory prompt> ls -l tasks -rw-r--r-- 1 alex student 1423 Feb 21 14:01 tasks What command can Alex use to give everyone permission to write to the file? What will the ls -l command display if he does so?
The rm command removes links to file. What does this mean? How then is a file deleted from the file system?
When the shell is reading the command line what is the difference between text enclosed between double quotes ( ” ) and text enclosed between signal quotes ( ’ )?
Assume that a file’s permissions give you read and write access. What operations can you perform on the file if it is in a directory which has “r”(read) only process? What operations can you perform on the file if it is in a directory which has “x”(execute) only access?
why unix command can be divided into internal and external command
how can you say that unix operating system provides more security than other operating systems.
why unix commands simpler rather than complex task
what is difference between unix and linux?
how to change a normal file into hidden file
HOW can I work UNIX commands on Windows XP without installing UNIX O/S in PC
How to know a process is a zombie or orphan process?
how to check GDE,EME,Java,Oracle9i Enterprise Edition Release versions Versions on unix system
What is "type" command in unix?what is the functionality??
how to find largest file?
What is the difference between AWK and SED commands? Plz give example and explain...
Is there any command in Unix, other than:ls, to list the files in a directory? The answer will be highly appreciated...
How do you find which version and name of unix you are using at the command prompt?
how to set request time out value for name resolution on clients (hp-ux) ?
What Is the command to change a file's creation time. means one file is created at the time 15:19 then time should br changed to 14:14
what is exact definition of operating system?
differentiate between named & unnamed pipe.
what is diff between command and utility in unix
what will be the output of ls ~/..
what will this do $cat > file.c ?(file.c is a file in current directory)
how unix kernel distinguishes between a normal file and device file ?
HOW DO CREATE A NFS FILE SYSTEM
What is the difference between Shell Programming and Shell scripting?
Give the command to display space usage on the UNIX file system.
hi.when will u come to klnce 4 campus interviews??/
How can u doing testing in Unix environment ?
What is the difference between windows environment and Unix environment ?
What is use of sed command?
Which Command is Used for temprary switch User?
Which mode is used for allowing file write,read and append mode?
how to remotely move a file ??? that mean how to move a file one machine to another machine ???
what is the meaning of this command rm -rf / what will it do ?
what is mount ,tell me about mount ,how can u use in real time project??
What is file system in unix??
which is the best book for learning unix and linux?
what is difference between kernel and shell?
How to set Windows as Default OS when Dual Booting Ubuntu?
How do I log into a remote Unix machine(as a root/normal user)?Please specify with command user and argument.
What is the job responsibility of a System Administrator (UNIX/LINUX),briefly describe (Also point out system admin's daily job details),specify job type & job description?
I am trying to unmount a remote file system,but I do not unmount that file system.How can i know the user name (i.e.,user who is using that file system).....write the command with argument
Telnet sometimes doesn't permit root logons,how will you then change a file writable only by root on a remote host?
If your linux machine shows a ~(tilde) in most filenames on your dos or windows partition,what is the mistake you have made?How do you get back the long filenames?
why do you need to have a swap file system?
If the terminal is not showing the login prompt,what's the 1st thing you should check?and how do you solve the problem?
How to setup Disk space as well as memory in solaris10?
What is the functions of zambie process?
What do you mean by zambie process?
How to setup sudo, only can use for particular date & time only ( for solaris10 )
What is Mac, and how is it different from PC? Which one is better for professional users, and why
Why we are using UNIX OS when we are doing the testing in our application?
What is FIND, GREP and SED ? Could you please give me the difference between all the three? Where we use this commnands?
who to change the duplex setting of network interface in command line
does the stat() function call use the inode of the file to generate the information about a file? what is inode mostly used for?
what is the use of the hidden files?
in unix how to change old name to new name
how many types of file in unix?
how will u execute a file in unix
What is virtual memory?
What is mutex?
In detail elaborate the system? What is driver?
What is FTP?
What is paging?
What is INODE?
What is file system in UNIX?
What are different types of shells?
Have you used VI editor?
What are permissions in UNIX?
How will you run the script in UNIX?
What is ant_build.sh? Have u seen that file?
what is the difference between Touch & cat command
How do you create a file in UNIX
What is the difference between pipe (|) and tee command in unix
what is the difference between pipe(|) and tee command..
how to face veritas NetBAckup interview, where did i find all materials regrding veritas and give details on veritas certification
Write a command to find all of the files which have been accessed within the last 30 days.
How we will execute previous command in vi editor?
How we will execute previous command in vi editor?
Write a command to find all of the files which have been accessed within the last 30 days.
What is the main advantage of creating links to a file instead of copies of the file?
What are each of the standard files and what are they normally associated with?
Could you tell something about the Unix System Kernel?
How to get a particular string as your prompt ? Give syntax of that command?
Give a regular expression that finds two things, try to come up with regular expressions that find each individually using "egrep" command?
what is the use of "test" command in unix?
In vi editor how do you execute unix commands?
How do you find path of a directory? Give its syntax.
What is the basic difference between unix and windows operating systems?
How do you remove a crontab file?
How do you know about running processes of a particular user?
Through which command will redirect output to bOth screen and files at the same time?
What is the use of pipes?
Which command will you use to change the permissions on file?
What is the procedure of "at" and crontab" commands?
How do you stop a running process?
How do you move a process which is running background to foreground?
What is the syntax of grep command and what is its use?
Suppose 1000 processes are running on the system out of those if you have to show only certain process ids which command will you use?
What is pid?
How do you copy a directory with many files and folders into another directory?
what do you understand bythe term 'de-mountable volumes'?
what do you understand by 'unix is a portable os'?
what are processor execution levels and priorities?
distinguish between multi-tasking,multi-user,multi- processing and time sharing?
distinguish between physical addresses and logical address?
what is virtual machine?
distinguish between interrupts and exceptions?
distinguish between user mode and kernel mode?
distinguish between paging and swapping?
what do you understand by 'building block primitive'?
what is the advaantage of each user having its own copy of the shell?
what does a process mean?
what are processor execution levels and priorities?
distinguish between multi-tasking,multi-user,multi- processing and time sharing?
distinguish between physical addresses and logical address?
what is virtual machine?
distinguish between interrupts and exceptions?
distinguish between user mode and kernel mode?
distinguish between paging and swapping?
what do you understand by 'building block primitive'?
what is the advaantage of each user having its own copy of the shell?
what does a process mean?
What are the system calls used for process management:
What are various IDs associated with a process?
Describe the initial process sequence while the system boots up?
Describe the mount and unmount system calls?
What are the Unix system calls for I/O?
How to remove weird filenames?
How to setup display for a remote system?
What do you mean by nice value?
What are the processes that are not bothered by the swapper? Give Reason.
What is Expansion swap?
What is Fork swap?
What do you mean by u-area (user area) or u-block?
What are the events done by the Kernel after a process is being swapped out from the main memory?
What is a Region?
What is a Map?
What is the difference between Swapping and Paging?
What is major difference between the Historic Unix and the new BSD release of Unix System V in terms of Memory Management?
What is IPC? What are the various schemes available?
How do you execute one program from within another?
What is an advantage of executing a process in background?
What Happens when you execute a command?
What is a Daemon?
What are the process states in Unix?
What is a zombie?
How can a parent and child process communicate?
How can you get or set an environment variable from a program?
What are the system calls used for process management?
Predict the output of the following program code main() { fork(); printf("Hello World!"); }
Explain fork() system call?
What are various IDs associated with a process?
what about the initial process sequence while the system boots up?
How does the inode map to data block of a file?
What are the mount and unmount system calls?
How do you create special files like named pipes and device files?
What is a FIFO?
What is 'inode'?
How are devices represented in UNIX?
set-user-id is related to (in unix)
what is the condition required for dead lock in unix sustem ?
About i-node numbers
Max relaxable permisssion value with out giving write permission to others?
write About fork()?
About ln(linking)
Linking across directories?
what is the very first process created by kernell
what is the process id for kernell process
In Unix inter process communication take place using?
Briefly, how do you install Oracle software on UNIX.
Give two UNIX kernel parameters that effect an Oracle install
How would you change all occurrences of a value using VI?
Explain iostat, vmstat and netstat.
Give the command to display space usage on the UNIX file system.
the difference between a soft link and a hard link?
Explain the read, write, and execute permissions on a UNIX directory.
What UNIX command will control the default file permissions when files are created?
How do you execute a UNIX command in the background?
How do you list the files in an UNIX directory while also showing hidden files?
What are the read or write or execute bits on a directory mean?
What does iostat do?
What does the ?route? command do?
What are the main differences between Apache 1.x and 2.x?
What steps are required to perform a bare-metal recovery?
What is a level 0 backup?
What is an incremental backup?
Name key files or directories on a Windows system that should always be backed up?
Name key files or directories on a UNIX system that should always be backed up?
From command line how will you add a user account?
what is a profile?
what happens when we create a file system?
What is a pipe?
What is egrep?
What is the difference between grep & find?
What is default permissions for others in a file?
How to put a job in background & bring it to foreground?
What is a daemon?
How to recover a system whose root password has lost?
what is RAID 1+0?
How to list only the directories inside a directory?
What is the difference between hard link & softlink?
How do you change your account's password?
what is shell?
what is kernel?
what are the differences between CUI and GUI interfaces?
what are the different hardwares available?
what are the different operating systems available?
If we want to see first 35 lines of a file which command we have to use?
what are the different commands used to view the contents of a file?
How to delete a directory containing files and folders?
what are the different commands used to create files?
How to rename files and folders?
Will rm -r* removes hidden files?
How to copy multiple files and directories into some other directory?
which command is used to identify the type of the file?
How to view the hidden files in /etc directory?
How to identify whether a file is normal file or directory?
How to get the operating system's information in unix?
what is the functionality of kernel in unix architecture?
what is the use of "grep" command?
what are the uses of filters?
How to redirect standard error to a file?
what is the use of wild cards?
what is the use of "fg" command ?
what is the use of nice command?
which command is used to stop a running process in unix?
which command is used to change group?
what is the significance of "su" command?
In Unix file permissions what does the second field denotes?
How to remove a crontab file?
what is the difference between "cron" command and "at" command?
what does the job command do?
How to create hardlinks and softlinks on files?
what does the command 'wc' do?
what does the 'tee' command do?
what is the function of grep command?
what are filters?
Can a process kill itself in UNIX/or in its various versions?
How to convert a hidden file to normal visible file?
what is telnet?
what is the shell for dos,nt operating systems?
what is tar command and what are the different types of tar commands?
what is the use of uniq commmand?
what is the difference between commmands cmp and diff?
what is the difference between relative path and absolute path?
what are wild cards?
what is the command to find out the difference between files and folders?
what is the command to find out which shell you are running?
The very first process created by the Kernal in UNIX is
When should we use thread-safe "_r" library calls?
what are the Performance differences between User-space threads and Kernel-supported threads.
what are the Architectural differences between User-space threads, and Kernel-supported threads.
What are the different kinds of threads?
what is Scheduling?
Protection boundary??
What is Critical section?
what is Context switch?
What are the main families of threads?
What are threads?
What does init do? What does inetd do?
What is an inode?
What does mknod do? What?s a named pipe?
What are setuid/setgid in relation to file permissions?
What scripting languages do you know?
How many VI editor modes do you know?
What is the difference between > and >> operators?
What is the difference between internal and external commands?
in UNIX,what is the command to remove directory with files?
in UNIX,How to copy file into directory?
in UNIX,How do you check for processes started by particular user suppose the user name is 'suresh'?
What is a filesystem?
what is the command to get help on a UNIX terminal?
How do you log in to a remote Unix box?
in UNIX ,What is the command to view contents of a large error log file?
In UNIX, what is the command to edit contents of the file?
In UNIX, what is the command to kill a process?
How do you find out all processes that are currently running in UNIX OS?
what is the command to list all files in a directory, including the hidden files in UNIX ?
what is the command to list files in a directory in UNIX?
Give two UNIX kernel parameters that effect an Oracle install
How would you change all occurrences of a value using VI?
Explain iostat, vmstat and netstat.
Give the command to display space usage on the UNIX file system.
What is the difference between a soft link and a hard link?
Explain the read, write, and execute permissions on a UNIX directory.
What UNIX command will control the default file permissions when files are created?
How do you execute a UNIX command in the background?
How do you list the files in an UNIX directory while also showing hidden files?
what is the name os the first os and tell me the year when it was discovered
fork()?
very first process created by kernell?
process id for kernell process?
What are the files in /etc directory?
In Unix inter process communication take place using?
interprocess command in unix be achieved by a)pipes b)messages c)semaphores d)shared memory e)all
The command grep first second third /usr/you/myfile a) prints lines containing the words first, second or third from the file /usr/you/myfile b) searches for lines containing the pattern first in the files second, third, and /usr/you/myfile and prints them c) searches the files /usr/you/myfiel and third for lines containing the words first or second and prints them d) replaces the word first with the word second in the files third and /usr/you/myfile e) None of the above
The very first process created by the kernal that runs till the kernal process is haltes is
The UNIX shell is.... a).does not come with the rest of the system b).forms the interface between the user and the kernal c) does not give any scope for programming d) deos not allow calling one program from with in another e) all of the above
in unix echo is used for
in unix profile contains
fork in unix ?
What command would users use to see what file one page at a time in UNIX?
What command a user use to view a long text file one page at a time in UNIX?
What command will bring user back to their home directory in UNIX?
How does the user view the contents of a text file in UNIX?
What Command will remove a Directory in UNIX?
How does a user get the current date, time in UNIX?
how do display only hidden files in unix?
following two file are file a file b 110 aab 330 xxl i want the output like file a fileb 110 xxl 330 aab give solution ?
how to find multiple string?
unix command how to dispaly no of records in oracle?
finding the presence of a word in a list of 'n' files (pattern matching)
command to view process running?
command to show the space allocation of files?
command to display different lines that are found when compare two files?
how do you move a backgrounnd job to forward?
1)what is grep|sort give example? 2)what are the test commands
Interviewer: Lets say there is a partition of 100GB. When i tried to create a file using touch command, under any directory, it was unable to create the file- '100% full disk space'. I calculated the size of each and every directory on that partition mannually by adding each file size & in came out to be total size 50GB. Then where is the remaining 50GB ? why it is showing disk space 100% full in 'df -h' command?
i have one column with data smith john michale the o/p should be smith,john,michale how we do in unix
What will be the result if we run the command #find /tmp - mtime -2 and #find /tmp -mtime +2
What is the difference between NFS 3 and NFS 4? What are new features added in NFS4?
how to use grep command to list find the records of a file containg 10 different strings
What are the general Commands in using Unix OS for a beginner? how many commands you know in that?
What is difference between SSH V1 and SSH V2? What are drawbacks of SSH V2?
Suppose you have a scheduling chain where the process 1 is a predecessor of the process 2 and both of them are scheduled every Monday at 8.00pm. Will I find execution log of process 1 every Tuesday morning? And what about the other one? Why?
What is a "parameter card" and what is useful for?
What does "bulk loading of a table" mean? Can you describe advantages or disadvantages of using these features?
What is RC (return code)? What is useful for? Which are the common values?
what is the functionality of kernel in unix architecture?
What is the difference between a shell variable that is exported and the one that is not exported?
1)How to schedule a job,that will periodically execute in second by crontab? 2)I know only second specific time to execute the job. like 10 10 * * * sleep 40&&ps -l>/dev/pts/1 It will execute at 10:10:40 AM but do not know how to execute 15 second,30 second so on at 10:10 am.
What is procedure to configure Mirror rootvg in HP-UX?
What is Quorum Group? and Quorum Disk?
What is the procedure to configure MC/SG Cluster services in HP-UX 11i v3 OS Environment?
How to write the program on full-duplex communication using 2 FIFOs
what is the process id for kernel process?
What is semaphone?
How to write the program on full-duplex communication on biderctional(e.g using two pipes)
What are the system calls used for process management:
What are various IDs associated with a process?
Describe the initial process sequence while the system boots up?
What is IPC? What are the various schemes available?
How do you execute one program from within another?
What is an advantage of executing a process in background?
What Happens when you execute a command?
What is a Daemon?
What are the process states in Unix?
What is a zombie?
How can a parent and child process communicate?
How can you get or set an environment variable from a program?
What are the system calls used for process management?
Predict the output of the following program code main() { fork(); printf("Hello World!"); }
Explain fork() system call?
What are various IDs associated with a process?
what about the initial process sequence while the system boots up?
set-user-id is related to (in unix)
what is the condition required for dead lock in unix sustem ?
About i-node numbers
Max relaxable permisssion value with out giving write permission to others?
write About fork()?
About ln(linking)
Linking across directories?
what is the very first process created by kernell
what is the process id for kernell process
What is the number of the masked code ee@?
Why do inode number start from 1 and not 0 ?
How do you use Unix for Backend Testing ?
. Using sed and grep, write a command which lists files and directories with following properties: (i) created in 1999 (ii) with user's as owner and group
how to create a file system quota in HP-UX?
virtual terminal protocol is an example of which layer and works with which layer?
What is mean by Mac os? Why it is named as like that? Which purprose it is using? Please answer me. Advance thanks.
How to find the version details of unix? if any application is installed in unix OS how to find the version of that application is it possilbe or not? pls let me know cmd in detail.
What is file constructing in UNIX/AIX ?
If Media Server fails. What are the steps to be followed? Can anyone please reply for this question Thanks, Ganesh
System A can contact system B, but not in reverse, not firewall, not tcp wrappers, what is the reason ?
what is mean by kernal?
why unix command can be divided into internal and external command
how can you say that unix operating system provides more security than other operating systems.
why unix commands simpler rather than complex task
how to check GDE,EME,Java,Oracle9i Enterprise Edition Release versions Versions on unix system
how to set request time out value for name resolution on clients (hp-ux) ?
differentiate between named & unnamed pipe.
HOW DO CREATE A NFS FILE SYSTEM
hi.when will u come to klnce 4 campus interviews??/
How can u doing testing in Unix environment ?
What is the difference between windows environment and Unix environment ?
which is the best book for learning unix and linux?
what is difference between kernel and shell?
How to set Windows as Default OS when Dual Booting Ubuntu?
How do I log into a remote Unix machine(as a root/normal user)?Please specify with command user and argument.
What is the job responsibility of a System Administrator (UNIX/LINUX),briefly describe (Also point out system admin's daily job details),specify job type & job description?
I am trying to unmount a remote file system,but I do not unmount that file system.How can i know the user name (i.e.,user who is using that file system).....write the command with argument
Telnet sometimes doesn't permit root logons,how will you then change a file writable only by root on a remote host?
If your linux machine shows a ~(tilde) in most filenames on your dos or windows partition,what is the mistake you have made?How do you get back the long filenames?
why do you need to have a swap file system?
If the terminal is not showing the login prompt,what's the 1st thing you should check?and how do you solve the problem?
does the stat() function call use the inode of the file to generate the information about a file? what is inode mostly used for?
in unix how to change old name to new name
What is virtual memory?
What is mutex?
In detail elaborate the system? What is driver?
What is FTP?
What is paging?
What is INODE?
What is file system in UNIX?
What are different types of shells?
Have you used VI editor?
What are permissions in UNIX?
How will you run the script in UNIX?
What is ant_build.sh? Have u seen that file?
how to face veritas NetBAckup interview, where did i find all materials regrding veritas and give details on veritas certification
What is the main advantage of creating links to a file instead of copies of the file?
What are each of the standard files and what are they normally associated with?
Could you tell something about the Unix System Kernel?
How to remove weird filenames?
How to setup display for a remote system?
What do you mean by nice value?
What are the processes that are not bothered by the swapper? Give Reason.
What is Expansion swap?
What is Fork swap?
What do you mean by u-area (user area) or u-block?
What are the events done by the Kernel after a process is being swapped out from the main memory?
What is a Region?
What is a Map?
What is the difference between Swapping and Paging?
What is major difference between the Historic Unix and the new BSD release of Unix System V in terms of Memory Management?
How does the inode map to data block of a file?
What are the mount and unmount system calls?
How do you create special files like named pipes and device files?
What is a FIFO?
What is 'inode'?
How are devices represented in UNIX?
What are the read or write or execute bits on a directory mean?
What does iostat do?
What does the ?route? command do?
What are the main differences between Apache 1.x and 2.x?
What steps are required to perform a bare-metal recovery?
What is a level 0 backup?
What is an incremental backup?
Name key files or directories on a Windows system that should always be backed up?
Name key files or directories on a UNIX system that should always be backed up?
From command line how will you add a user account?
what is a profile?
what happens when we create a file system?
What is a pipe?
What is egrep?
What is the difference between grep & find?
What is default permissions for others in a file?
How to put a job in background & bring it to foreground?
What is a daemon?
How to recover a system whose root password has lost?
what is RAID 1+0?
How to list only the directories inside a directory?
What is the difference between hard link & softlink?
What does init do? What does inetd do?
What is an inode?
What does mknod do? What?s a named pipe?
What are setuid/setgid in relation to file permissions?
What scripting languages do you know?
How many VI editor modes do you know?
What is the difference between > and >> operators?
What is the difference between internal and external commands?
What is a filesystem?
How do you log in to a remote Unix box?
Give two UNIX kernel parameters that effect an Oracle install
How would you change all occurrences of a value using VI?
Explain iostat, vmstat and netstat.
Give the command to display space usage on the UNIX file system.
What is the difference between a soft link and a hard link?
Explain the read, write, and execute permissions on a UNIX directory.
What UNIX command will control the default file permissions when files are created?
How do you execute a UNIX command in the background?
How do you list the files in an UNIX directory while also showing hidden files?
what is the name os the first os and tell me the year when it was discovered
fork()?
very first process created by kernell?
process id for kernell process?
What are the files in /etc directory?
In Unix inter process communication take place using?
interprocess command in unix be achieved by a)pipes b)messages c)semaphores d)shared memory e)all
The very first process created by the kernal that runs till the kernal process is haltes is
The UNIX shell is.... a).does not come with the rest of the system b).forms the interface between the user and the kernal c) does not give any scope for programming d) deos not allow calling one program from with in another e) all of the above
in unix profile contains
How to open a Database using Unix Command Please Do Reply
How will you know who are the users logged in to the system before 15 minutes?
How to find and replace the below command?
what is Online(STM) and offline diagnostics in HP-UX?
how to make IGNITE-BACKUP in HP-UX?
What is clustering in HP and how it's work?
what is the difference between npar and vpar in HP-UX?
what is the default signal kill in unix?
How many bits use for MAC address?
What is the protocol for PING command?
Which is the command used to find out currently executing Process in UNIX?
What is the output of : $ ps-e $ ps-a commands
How to check whether some services are running in another server or not? Suppose i am currently in a server named A.I want to check whether some services are running in server B without logging into the server B.
By using which command we can find the CPU utilization time?
How to find the files that are accessed before 10 minutes?
What is the difference between pipe and xargs?
A file has 1000 lines and i want to display only 1st line how to do it? pls ..tel me
How can i know my Filesystem and its current usage in my prod UNIX system?
What is an Unix command to convert HEX value to ASCII value located in any flat file.
what is the cmd to remove the comment lines from a file and to display the original text without comments? thanks in advance......
what is the cmd to display the last exit status in UNIX?
to list a particular line in the file
What is the different between UNIX command and UNIX shell script?
hi i have directories within the directory. Now i want to copy the directory along with all directories included in it to one location by using copy command? what is the command
how will you convert a general file to a hidden file?
how will you login one server's shell prompt to an another server?
in a growing log file how will you see the 1st 99 lines?
1-how will you display a file whose name is starting with '- '? 2-how will you add a patten at end of every line in vi editor?
29. How to display top 10 users Who | head -10 | wc –w
use of ls command
How to check the flavor of UNIX?
write grep commands to select the lines that have exactly two characters
Where LOG fiels resides in AIX and pls tel me how to remove the log file
when we installing aix os the ssh installed default?
What is shrinking file system in AIX where it actually resides?
If JFS file system is 100% full how we can increase the file system ?
how to find the 51th record of a file containing 100 records in unix.
what is the difference between SED and GREP ? Which one is more better and why?
what is the difference between KILL and KILL -9?
How to display a file name which has zero bytes in size.
How i'll delete a particular line from the file? Please give answer as soon as possible. Thanks in advance.
Sorry to all Technical person for mistake of Question. Now i am post currect question Why copied file permission is changed in destination. When i give all permission i.e 777 to file and copy that to other location in destination the permission is 755. But if give permission 555 in destination that file permission is 555 and if give permission 444 to file after copy in destination the file permission is 444. These all are happening in normal user. How the umask value is calculate here really i am not understand. Please write the proper answer. Thanks in Advance
How to install scsi driver in unix? give me explanation clearly?
what is the command to print last 8 lines of any text file.
what is ls -ltd?
Hi All, Can you please let me know how to grep for a particular pattern in unix. I want to print the dates from the file exp.txt. the date pattern is DD:MM:YYYY, I just want to print all the dates from the file exp.txt.
if we create a file, in that 10 rows(means 1,2,....9,10 like). i want 7 row exactly, which command use in unix? plz send this question.
How to set sticky bit, or it have any seperate directory to create sticky bit in sunfir servers. Please help me , i don't no the exact answer?
how many internal commands is there in UNIX?
How does one process we can start an executable file? How to get the PID process, which we started?
How can we "forked" process in UNIX? How then recognize in any of the branches we?
can we use cat command as an editor ..???
Where can I get the free download of Unix by Yeswant Kanetkar?
Which RAID Levels supported by LVM?
why unix commands can be divided into internal and external commands?
why unix operating system provides more security than other operating systems?
what is the use of ls -l command & what is the information it gives about user ?
What is an Environment Variable?
Write a grep (or grep) command that selects the lines from a file that have exactly three characters.
describe the escaping sequence characteres in unix
Assume the following files are in the working directory prompt> ls -l tasks -rw-r--r-- 1 alex student 1423 Feb 21 14:01 tasks What command can Alex use to give everyone permission to write to the file? What will the ls -l command display if he does so?
The rm command removes links to file. What does this mean? How then is a file deleted from the file system?
When the shell is reading the command line what is the difference between text enclosed between double quotes ( ” ) and text enclosed between signal quotes ( ’ )?
Assume that a file’s permissions give you read and write access. What operations can you perform on the file if it is in a directory which has “r”(read) only process? What operations can you perform on the file if it is in a directory which has “x”(execute) only access?
what is difference between unix and linux?
how to change a normal file into hidden file
How to know a process is a zombie or orphan process?
What is "type" command in unix?what is the functionality??
how to find largest file?
What is the difference between AWK and SED commands? Plz give example and explain...
Is there any command in Unix, other than:ls, to list the files in a directory? The answer will be highly appreciated...
How do you find which version and name of unix you are using at the command prompt?
What Is the command to change a file's creation time. means one file is created at the time 15:19 then time should br changed to 14:14
what is exact definition of operating system?
what will be the output of ls ~/..
what will this do $cat > file.c ?(file.c is a file in current directory)
how unix kernel distinguishes between a normal file and device file ?
What is the difference between Shell Programming and Shell scripting?
Give the command to display space usage on the UNIX file system.
What is use of sed command?
Which Command is Used for temprary switch User?
Which mode is used for allowing file write,read and append mode?
how to remotely move a file ??? that mean how to move a file one machine to another machine ???
what is the meaning of this command rm -rf / what will it do ?
what is mount ,tell me about mount ,how can u use in real time project??
What is file system in unix??
How to setup Disk space as well as memory in solaris10?
What is the functions of zambie process?
What do you mean by zambie process?
How to setup sudo, only can use for particular date & time only ( for solaris10 )
Why we are using UNIX OS when we are doing the testing in our application?
What is FIND, GREP and SED ? Could you please give me the difference between all the three? Where we use this commnands?
who to change the duplex setting of network interface in command line
what is the use of the hidden files?
how many types of file in unix?
how will u execute a file in unix
what is the difference between Touch & cat command
How do you create a file in UNIX
What is the difference between pipe (|) and tee command in unix
what is the difference between pipe(|) and tee command..
Write a command to find all of the files which have been accessed within the last 30 days.
How we will execute previous command in vi editor?
How we will execute previous command in vi editor?
Write a command to find all of the files which have been accessed within the last 30 days.
How to get a particular string as your prompt ? Give syntax of that command?
Give a regular expression that finds two things, try to come up with regular expressions that find each individually using "egrep" command?
what is the use of "test" command in unix?
In vi editor how do you execute unix commands?
How do you find path of a directory? Give its syntax.
What is the basic difference between unix and windows operating systems?
How do you remove a crontab file?
How do you know about running processes of a particular user?
Through which command will redirect output to bOth screen and files at the same time?
What is the use of pipes?
Which command will you use to change the permissions on file?
What is the procedure of "at" and crontab" commands?
How do you stop a running process?
How do you move a process which is running background to foreground?
What is the syntax of grep command and what is its use?
Suppose 1000 processes are running on the system out of those if you have to show only certain process ids which command will you use?
What is pid?
How do you copy a directory with many files and folders into another directory?
what do you understand bythe term 'de-mountable volumes'?
what do you understand by 'unix is a portable os'?
what are processor execution levels and priorities?
distinguish between multi-tasking,multi-user,multi- processing and time sharing?
distinguish between physical addresses and logical address?
what is virtual machine?
distinguish between interrupts and exceptions?
distinguish between user mode and kernel mode?
distinguish between paging and swapping?
what do you understand by 'building block primitive'?
what is the advaantage of each user having its own copy of the shell?
what does a process mean?
what are processor execution levels and priorities?
distinguish between multi-tasking,multi-user,multi- processing and time sharing?
distinguish between physical addresses and logical address?
what is virtual machine?
distinguish between interrupts and exceptions?
distinguish between user mode and kernel mode?
distinguish between paging and swapping?
what do you understand by 'building block primitive'?
what is the advaantage of each user having its own copy of the shell?
what does a process mean?
Briefly, how do you install Oracle software on UNIX.
Give two UNIX kernel parameters that effect an Oracle install
How would you change all occurrences of a value using VI?
Explain iostat, vmstat and netstat.
Give the command to display space usage on the UNIX file system.
the difference between a soft link and a hard link?
Explain the read, write, and execute permissions on a UNIX directory.
What UNIX command will control the default file permissions when files are created?
How do you execute a UNIX command in the background?
How do you list the files in an UNIX directory while also showing hidden files?
How do you change your account's password?
what is shell?
what is kernel?
what are the differences between CUI and GUI interfaces?
what are the different hardwares available?
what are the different operating systems available?
If we want to see first 35 lines of a file which command we have to use?
what are the different commands used to view the contents of a file?
How to delete a directory containing files and folders?
what are the different commands used to create files?
How to rename files and folders?
Will rm -r* removes hidden files?
How to copy multiple files and directories into some other directory?
which command is used to identify the type of the file?
How to view the hidden files in /etc directory?
How to identify whether a file is normal file or directory?
How to get the operating system's information in unix?
what is the functionality of kernel in unix architecture?
what is the use of "grep" command?
what are the uses of filters?
How to redirect standard error to a file?
what is the use of wild cards?
what is the use of "fg" command ?
what is the use of nice command?
which command is used to stop a running process in unix?
which command is used to change group?
what is the significance of "su" command?
In Unix file permissions what does the second field denotes?
How to remove a crontab file?
what is the difference between "cron" command and "at" command?
what does the job command do?
How to create hardlinks and softlinks on files?
what does the command 'wc' do?
what does the 'tee' command do?
what is the function of grep command?
what are filters?
Can a process kill itself in UNIX/or in its various versions?
How to convert a hidden file to normal visible file?
what is telnet?
what is the shell for dos,nt operating systems?
what is tar command and what are the different types of tar commands?
what is the use of uniq commmand?
what is the difference between commmands cmp and diff?
what is the difference between relative path and absolute path?
what are wild cards?
what is the command to find out the difference between files and folders?
what is the command to find out which shell you are running?
in UNIX,what is the command to remove directory with files?
in UNIX,How to copy file into directory?
in UNIX,How do you check for processes started by particular user suppose the user name is 'suresh'?
what is the command to get help on a UNIX terminal?
in UNIX ,What is the command to view contents of a large error log file?
In UNIX, what is the command to edit contents of the file?
In UNIX, what is the command to kill a process?
How do you find out all processes that are currently running in UNIX OS?
what is the command to list all files in a directory, including the hidden files in UNIX ?
what is the command to list files in a directory in UNIX?
The command grep first second third /usr/you/myfile a) prints lines containing the words first, second or third from the file /usr/you/myfile b) searches for lines containing the pattern first in the files second, third, and /usr/you/myfile and prints them c) searches the files /usr/you/myfiel and third for lines containing the words first or second and prints them d) replaces the word first with the word second in the files third and /usr/you/myfile e) None of the above
in unix echo is used for
fork in unix ?
What command would users use to see what file one page at a time in UNIX?
What command a user use to view a long text file one page at a time in UNIX?
What command will bring user back to their home directory in UNIX?
How does the user view the contents of a text file in UNIX?
What Command will remove a Directory in UNIX?
How does a user get the current date, time in UNIX?
Give Command that will change the name of a directly from paypal to eBay
Give command that will make the file "run.sh" executable?
Give Command that will move a single file called "unix.txt"
What Command is used to make a directory?
What command is used to replace the existing string with some other?