What does grep command do?
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How do I open a text file in cmd?
How to recover /etc/passwd file and /etc/shadow file?
what is work of dns
What is df command in unix?
How do I run whois command?
What commands are used to see all jobs running in the hadoop cluster and kill a job in linux?
Suppose I lost a root password and I need to give it, I treid to change it through single usermode even though I am not get a password, then what is the otherprocedure to give a root password?
What does uname do in linux?
Diff b/w C-shell and Born-shell
How often do you use grep command and how in Linux operating system?
How do you know which shell I am using in linux?
How use linux command line?