What is grep in bash?
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which command is used to change group?
what is the command to find out which shell you are running?
What does the command ' $who | sort –logfile > newfile' do?
What is time_t?
distinguish between user mode and kernel mode?
Through which command will redirect output to bOth screen and files at the same time?
How do I search for a file in unix command?
Is there any method to erase all files in the current directory, along with its all sub-directories, by using only one command?
distinguish between multi-tasking,multi-user,multi- processing and time sharing?
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What does 'mkdir' command do in UNIX?
Can a process kill itself in UNIX/or in its various versions?
can we use cat command as an editor ..???