UNIX COMMANDS Interview Questions
How to setup Disk space as well as memory in solaris10?
What are the functions of zambie process?
What do you mean by zambie process?
How to setup sudo, only can use for particular date & time ?
Why we are using UNIX OS when we are doing the testing in our application?
What is FIND, GREP and SED ? Could you explain 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 files in unix?
How will you 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 ?
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 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 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.
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?
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?
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?
What are the functions of zambie process?
What do you mean by zambie process?
How to setup sudo, only can use for particular date & time ?
Why we are using UNIX OS when we are doing the testing in our application?
What is FIND, GREP and SED ? Could you explain 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 files in unix?
How will you 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 ?
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 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 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.
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?
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?
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?
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