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commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

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Set laptop display brightness
Run as root. Path may vary depending on laptop model and video card (this was tested on an Acer laptop with ATI HD3200 video). $ cat /proc/acpi/video/VGA/LCD/brightness to discover the possible values for your display.

Generate random IP addresses
It never ends

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

shell bash iterate number range with for loop

copy partition table from /dev/sda to /dev/sdb

list all opened ports on host

Remove all backup files in my home directory
I use this simple command for remove all backup files generated usually by editors like Vim and Emacs.

Command Line to Get the Stock Quote via Yahoo
Retrieve the current stock price from Yahoo Finance. The output is simply the latest price (which could be delayed). If you want to look up stock for a different company, replace csco with your symbol.

"Pretty print" $PATH, separate path per line
from: http://www.unix.com/shell-programming-and-scripting/28047-split-print-path.html

Extract a IRC like chat log out of an Adium xml logfile


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