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List the files any process is using
List the files a process is using.

Change prompt to MS-DOS one (joke)
This one eliminates the additional backslash at the end (which is not necessary)

restoring some data from a corrupted text file
man tac When there is a bad block in the middle of your file, you can see its begninning with `cat' and its end with `tac'. But both commands terminates with an error. So this sequence rebuilds a new file without badblock.

Checks throughput between two nodes
This will show the throughput between two nodes. Thanks to szboardstretcher, who posted it here: http://www.linuxquestions.org/questions/linux-networking-3/quick-and-easy-way-to-measure-throughput-between-two-nodes-868998/

replace XX by YY in the the current directory and cd to it. ( in ZSH )
If you are in /begin/path/with/XX/pattern cd XX YY will change your current directory to /begin/path/with/YY/pattern in ZSH

Shows you how many hours of avi video you have.
midentify.sh is part of mplayer, but you might have to locate it on your box.

Find duplicate UID in /etc/passwd
You can use only awk

Random file naming

Find the package that installed a command

pretend to be busy in office to enjoy a cup of coffee
Not as taxing on the CPU.


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