Commands by denysonique (1)

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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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Prepare a commandlinefu command.
This command will format your alias or function to a single line, trimming duplicate white space and newlines and inserting delimiter semi-colons, so it continues to work on a single line.

use SHIFT + ALT to toggle between two keyboard layouts
change the last two-character abbreviation to any layout abbreviation you want. This command will only run in the current session, add to your ~/.bashrc to make this permanent.

Create more threads with less stack space
default stack size is 10M. This makes your multithread app filling rapidly your memory. on my PC I was able to create only 300thread with default stack size. Lower the default stack size to the one effectively used by your threads, let you create more. ex. putting 64k I was able to create more than 10.000threads. Obviously ...your thread shouldn't need more than 64k ram!!!

Get duration of an audio file in seconds.
This is an alternative to #9131. ffmpeg didn't work on my .au files, though it did on the .wav ones. Also useful if you don't have ffmpeg but do have sox. Handily, sox already reports in seconds (decimal).

alias to close terminal with :q
Put this in your ~/.bashrc file (or the equivalent) If you use vim a lot, this alias will be immediately obvious. Your brain will thank you.

Watch a movie in linux without the X windows system.

add lyrics

Generate an XKCD #936 style 4 word passphrase (fast)
This restricts things 3 ways: 1. No capitalized words, hence no proper names. 2. No apostrophes. 3. Restricts size to range (3,7)

See KeepAlive counters on tcp connections
See connection's tcp timers

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


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