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Remote screenshot
Say if you're logged into a remote system via ssh and this system has an x window system, but yet you still want a screen shot of what's going on graphically. This will do it for you. :-)

Stream audio over ssh ogg version
Stream OGG vorbis over ssh.

list block devices
Shows all block devices in a tree with descruptions of what they are.

tcpdump whole packets to file in ascii and hex with ip adresses instead of hostname

Verify if ntpd is working properly
Used to verify if Network Time Protocol daemon is working properly.

tail a log over ssh
This is also handy for taking a look at resource usage of a remote box. $ ssh -t remotebox top

Multi-thread any command
For instance: $ find . -type f -name '*.wav' -print0 |xargs -0 -P 3 -n 1 flac -V8 will encode all .wav files into FLAC in parallel. Explanation of xargs flags: -P [max-procs]: Max number of invocations to run at once. Set to 0 to run all at once [potentially dangerous re: excessive RAM usage]. -n [max-args]: Max number of arguments from the list to send to each invocation. -0: Stdin is a null-terminated list. I use xargs to build parallel-processing frameworks into my scripts like the one here: http://pastebin.com/1GvcifYa

function to compute what percentage of X is Y? Where percent/100 = X/Y => percent=100*X/Y
This function make it easy to compute X/Y as a percentage. The name "wpoxiy" is an acronym of "what percentage of X is Y"

Preserve colors when piping tree to less

Use Dell Service Tag $1 to Find Machine Model [Model Name and Model Number]
255 Max Characters CommandLineFu for $dellurl='http://support.dell.com/support/topics/global.aspx/support/my_systems_info/en/details?c=us&cs=04&l=en&s=hied&ServiceTag='


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