Commands tagged jhead (1)

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create ICO file with more than one image
requires imagemagick. -background transparent is of course optional.

Compare two directory trees.
This uses Bash's "process substitution" feature to compare (using diff) the output of two different process pipelines.

display a smiling smiley if the command succeeded and a sad smiley if the command failed
you could save the code between if and fi to a shell script named smiley.sh with the first argument as and then do a smiley.sh to see if the command succeeded. a bit needless but who cares ;)

Find out my Linux distribution name and version

Watch active calls on an Asterisk PBX
Only the number of calls nothing else.

a short counter
Maybe you know shorter ?

Test a serial connection
If the connection works you should see a "hello" on host A. If not: check your cabeling etc :-)

Losslessly rotate videos from your phone by 90 degrees.
Takes all the .3gp files in the directory, rotates them by 90 degrees, and saves them in the lossless ffv1 encoding. If this rotates in the wrong direction, you may want transponse=1 Re-encoding to ffv1 may result in a significant increase in file size, as it is a lossless format. Other applications may not recognize ffv1 if they don't use ffmpeg code. "huffyuv" might be another option for lossless saving of your transformations. The audio may be re-encoded as well, if the encoding used by your 3gp file doesn't work in a avi container.

Disco lights in the terminal

Play 89.3 @TheCurrent and get system notifications on song changes.
Plays the mp3 stream of The Current as a background job. When you are done run: $ fg %1 then to exit Quite possible with Growl for mac I'd guess, although have not tried. Libnotify needed for notification, stream will still work otherwise


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