Commands by BADmd (1)

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Unaccent an entire directory tree with files.
This command changes all filename and directories within a directory tree to unaccented ones. I had to do this to 'sanitize' some samba-exported trees. The reason it works might seem a little difficult to see at first - it first reverses-sort by pathname length, then it renames only the basename of the path. This way it'll always go in the right order to rename everything. Some notes: 1. You'll have to have the 'unaccent' command. On Ubuntu, just aptitude install unaccent. 2. In this case, the encoding of the tree was UTF-8 - but you might be using another one, just adjust the command to your encoding. 3. The program might spit a few harmless errors saying the files are the same - not to fear.

Find out how old a web page is
I used to use the Firefox "View page info" feature a lot to determine how stale the web page I was looking at was. Now that I use mostly Chrome I miss that feature, so here is a command line alternative using wget. The -S says to display the server response, the --spider says to not download any files/pages, just fetch the header. The output goes to stderr, so to grep it you use 2>&1 to combine the stderr stream with stdout, the pipe that to grep for Last-Modified. You can use curl instead if you have it installed, like this: $ curl --head -s http://osswin.sourceforge.net | grep Mod

video thumbnail gallery
thumbnail gallery of video using totem

Isolate file name from full path/find output
Quick method of isolating filenames from a full path using expansion. Much quicker than using "basename"

Recursively change permissions on files, leave directories alone.

See the 10 programs the most used

Send a signed and encrypted email from the command line
A very simple command to send a signed and encrypted message from the command line using GPG Keys

HTML5 ogg player
find OGG audio files on your *nix box and listen to them using your web browser

Number of CPU's in a system
this works for a Linux based system, other UNIX systems may have other way(s) to check the number of CPUs.

Easily run a program in the background without losing output
This function runs a program in the background, and logs all output to an automatically created logfile. That way, you can still get at the output without it clogging up your terminal. Tip: Throw fork() and this: $for prog in firefox kate konqueror ;do alias $prog="fork $prog";done into your bashrc, so that they'll automatically run out of the way.


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