Write a grep (or grep) command that selects the lines from
a file that have exactly three characters.
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How do you grep a case insensitive?
what is the advaantage of each user having its own copy of the shell?
How can we use grep command in unix?
Which unix command to make a new directory?
Differentiate cmp command from diff command.
What are filter commands in unix?
What are file commands?
What difference between cmp and diff commands?
Is there any method to erase all files in the current directory, along with its all sub-directories, by using only one command?
Why is grep called grep?
What is the use of the command 'ls -x chapter[1-5]' ?
What is command substitution?
What does grep v do?
Which command is used to delete all files in the current directory and all its sub-directories?
What is unix command?