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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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Show the key code for keyboard events include the Fn keys
The keycodes are a result of pressing: Mute (Fn+F1) a

Arch Linux sort installed packages by size
This one-liner will output installed packages sorted by size in Kilobytes.

Check if you work on a virtual/physical machine in Linux
Command used to know if we are working on a virtual or physical machine. This command will use the dmidecode utility to retrieve hardware information of your computer via the BIOS. Run this command as root or with sudo.

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

Archive all SVN repositories in platform indepenent form
Use of hotcopy for safety/stability of the backups.

cpu info

Install a basic FreeBSD system
Install a basic FreeBSD system on a distant server. I use this to install FreeBSD on servers that can only boot a Linux rescue system. This sytem loads on ram when booted, so it is possible to install freely. You can even install on ZFS root !

Export a subset of a database
Limits the number of rows per table to X

Deal with dot files safely

monitor what processes are waiting for IO interrupts


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