What is the difference between grep and grep?
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which command is used to change group?
What is the difference between pipe and xargs?
what is the difference between npar and vpar in HP-UX?
How can you see the command line history?
What is s and g in sed command?
How do you move a process which is running background to foreground?
How to copy multiple files and directories into some other directory?
What is .sh file?
What does the command '$ls | wc –l > file1' do?
What is the size of time_t?
Which unix command to make a new directory?
Which command should you use to find the remaining disk space in unix server?