What are grep patterns?
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Who wrote grep?
Why is awk called awk?
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 command will bring user back to their home directory in UNIX?
What does 'mkdir' command do in UNIX?
what is the use of the hidden files?
How to redirect standard error to a file?
Write a command that will display files in the current directory, in a colored, long format.
what is kernel?
How to view the hidden files in /etc directory?
distinguish between user mode and kernel mode?
How do you grep recursively?