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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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Make directories for and mount all iso files in a folder

graphical memory usage
smem is very clever, it keeps in mind shared memory in its calculations!!! http://www.selenic.com/smem/

Convert wmv into avi

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

Monitor memory fine-grained usage (e.g. firefox)
Sometimes top/htop don't give the fine-grained detail on memory usage you might need. Sum up the exact memory types you want

Get a range on line with sed (first two)
Get the two first lines of a file and quit.

Converts all windows .URL shortcuts in a directory to linux (gnome) .desktop shortcuts

Retry the previous command until it exits successfully

List upgrade-able packages on Ubuntu
Taken from apticron and modified.

Read aloud a text file in Ubuntu (and other Unixes with espeak installed


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