Commands using tac (15)

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Dumping Audio stream from flv (using mplayer)

list all hd partitions
Only one command and not dependant on full read access to the devices.

Get length of current playlist in xmms2

Download all images on a 4chan thread

Batch rename extension of all files in a folder, in the example from .txt to .md
Batch rename extension of all files in a folder, in the example from .txt to .md mmv most likely must be installed, but is very powerfull when you want to move/copy/append/link multiple files by wildcard patterns.

Create a script of the last executed command
Sometimes commands are long, but useful, so it's helpful to be able to make them permanent without having to retype them. An alternative could use the history command, and a cut/sed line that works on your platform. $history -1 | cut -c 7- > foo.sh

Remove space and/or tab characters at the end of line
The command removes all space and/or tabulation characters preceding new line

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

More precise BASH debugging

Join lines and separate with spaces
Read vmargs.txt, which is a text file that could either be DOS-style (\r\n) or UNIX-style (\n) line endings and join the lines with a space separator. Can this be shortened/made more elegant?


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