Write a grep (or grep) command that selects the lines from
a file that have exactly three characters.
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How do I find previous commands in unix?
What is a bash command?
what is the functionality of kernel in unix architecture?
What are the general commands in using unix os for a beginner?
how will you convert a general file to a hidden file?
How to display a file name which has zero bytes in size.
what is the cmd to remove the comment lines from a file and to display the original text without comments? thanks in advance......
How can i know my Filesystem and its current usage in my prod UNIX system?
What is the difference between AWK and SED commands? Plz give example and explain...
Which mode is used for allowing file write,read and append mode?
Differentiate cat command from more command.
Write a command that will allow a unix system to shut down in 15 minutes, after which it will perform a reboot.