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May 19, 2015 - A Look At The New Commandlinefu
I've put together a short writeup on what kind of newness you can expect from the next iteration of clfu. Check it out here.
March 2, 2015 - New Management
I'm Jon, I'll be maintaining and improving clfu. Thanks to David for building such a great resource!

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Commands by mulad from sorted by
Terminal - Commands by mulad - 10 results
mount -t cd9660 /dev/`mdconfig -a -t vnode -f discimg.iso` /cdrom
2009-02-19 06:31:14
User: mulad
Functions: mount

FreeBSD version of the Linux command

mount discimg.iso /cdrom -o loop

The "mdconfig" command creates a device and prints the name (typically "md0"). Just append that to "/dev/" and mount.

Once unmounted, you can unconfigure the device with

mdconfig -d -u 0

using "0" for md0, "1" for md1, etc.

mplayer $(ls -t /tmp/Flash*|head -1)
2009-02-19 04:38:40
User: mulad
Functions: ls

Many sites with Flash video players will download video files to /tmp on Linux, with temporary filenames like "FlashbGTHm4". These will often play in mplayer, totem, or other movie playing software. You must first navigate to a video page, let it start loading, and then pause playback.

find cvsdir -name Root -exec sed -i 's/oldserver/newserver/' {} \;
2009-02-19 04:31:13
User: mulad
Functions: find sed

If your CVS server has moved, here's a way to update your CVS Root files throughout your code tree without checking out a new copy of your files.

apt-get () { [ "$1" = source ] && (command apt-get "$@";true) || sudo apt-get "$@" }
2009-02-19 04:17:24
User: mulad
Functions: apt command sudo

An apt-get wrapper function which will run the command via sudo, but will run it normally if you're only downloading source files.

This was a bit of an excuse to show off the framework of

cmd && echo true || echo false

...but as you can see, you must be careful about what is in the "true" block to make sure it executes without error, otherwise the "false" block will be executed.

To allow the apt-get return code to pass through, you need to use a more normal if/else block:

apt-get () { if [ "$1" = source ]; then command apt-get "$@"; else sudo apt-get "$@"; fi }
tar ztf tar-lacking-subdirectory.tar.gz | xargs rm
2009-02-19 00:34:09
User: mulad
Functions: tar xargs

These days, most software distributed in tar files will just contain a directory at the top level, but some tar files don't have this and can leave you with a mess of files in the current folder if you blindly execute

tar zxvf something.tar.gz

This command can help you clean up after such a mistake. However, note that this has the potential to do bad things if someone has been *really* nasty with filenames.

for f in *.ogg; do vorbiscomment -l "$f" | sed 's/peter gabriel/Peter Gabriel/' | vorbiscomment -w "$f"; done
2009-02-18 23:54:01
User: mulad
Functions: sed

The "vorbiscomment" utility lets you update information such as artist names and song and album tags in an Ogg Vorbis file. You can use this command to fix any mistakes that were made when ripping an album.

psg () { ps auxwww | egrep "$1|PID" | grep -v grep }
2009-02-18 23:37:35
User: mulad
Functions: egrep grep ps

Yet another ps grep function, but this one includes the column headings.

while true; do read i; echo $[$i]; done
2009-02-18 23:13:09
User: mulad
Functions: echo read

The $[...] block in bash and zsh will let you do math.

echo $[6*7]

This is the same as using $((...)), which also works in ksh. Of course, this is a simple, dumb wrapper and doesn't allow floating-point.

while [ $(deborphan | wc -l) -gt 0 ]; do dpkg --purge $(deborphan); done
2009-02-18 22:31:22
User: mulad
Functions: wc

Upgraded Debian/Ubuntu/etc. systems may have a number of "orphaned" packages which are just taking up space, which can be found with the "deborphan" command. While you could just do "dpkg --purge $(deborphan)", the act of purging orphans will often create more orphans. This command will get them all in one shot.

for i in *; do mv "$i" "$(echo $i|tr A-Z a-z)"; done
2009-02-18 21:29:28
User: mulad
Functions: mv

This will convert filenames from uppercase to lowercase. I find this useful after downloading images from my digital camera. This works for English, but other languages may need something slightly more complex like this:

for i in *; do mv "$i" "$(echo $i|tr [:upper:] [:lower:])"; done

Also, the quote marks aren't necessary if your filenames don't contain spaces.