When I make a latex document, I need to compile three times for generate an updated index of contents. With ruby on command line, I run this operation with a fast one liner.

Update twitter from commandline, without revealing your password and without having to type it interactively.

You 'll need to put a line "machine twitter.com login TWITTERUSER password TWITTERPASS" in $HOME/.netrc and better chmod 600 that file.

Creates a PDF (over ps as intermediate format) out of any given manpage.

Other useful arguments for the -T switch are dvi, utf8 or latin1.

This will create a permanent alias to colorize the search pattern in your grep output

This will backup the _contents_ of /media/SOURCE to /media/TARGET where TARGET is formatted with ntfs. The --modify-window lets rsync ignore the less accurate timestamps of NTFS.

Handy use of bc in the command line. No need to get 'into' the bc to perform calculations

For Gentoo:

If you do not use this command, portage will fetch the source again, and rebuild the hole application from the top.

This command make portage keep all files that ar allready built

If you want a visual representation of the parent/child relationships between processes, this is one easy way to do it. It's useful in debugging collections of shell scripts, because it provides something like a call traceback.

When a shell script breaks, just remember "awwfux".

Find which package a file belongs to on Solaris along with it's packaging system metadata.

Logtool is a nice tool that can export log file to various format, but its strength lies in the capacity of colorize logs. This command take a log as input and colorize it, then export it to an html file for a more confortable view. Logtool is part of logtool package.Tested on Debian.

: new command allow to split a Vim screen in two separate windows. Each window can handle its own buffer.

Passing the -c new options when Vim start cause to split screen automatically.

Nload is part of nload package, tested under Debian. Nload display network bandwidth statistics, -u m options stands for MBit unit measure.

you don't need to echo, just a plain redirect is enough to empty the file

Empties all files in /var/log over 5000k. Useful if /var goes crazy or if you just haven't cleaned up in a while.

Seen here: http://www.pixelbeat.org/docs/terminal_colours/

sudo ipfw pipe 1 config bw 50KByte/s

Set the bandwidth (bw) limit to any number you want. For example you could have a 15kb pipe for X application and then a 100kb pipe for another application and attach things to those pipes. If a port isn’t attached to a pipe, it runs at full speed. Change the number (in this case 1) to a different number for a different pipe.

The next step is to attach your port.

sudo ipfw add 1 pipe 1 src-port 80

In this case anything on port 80 (http) will be set to a limit of 50Kbyte/s. If you want to attach a second port to this pipe, repeat the command but change the port number at the end.

src : http://www.mactricksandtips.com/2008/12/throttling-bandwidth-on-a-mac.html

This will compress the root directory to an external hard drive and split it to parts once it reaches the 4 Gigs file system limit.

You can simply restore it with:

Found this one little more for me. This one removes the perl dependency (from command 2535).

Source for command : http://www.earthinfo.org/linux-disk-usage-sorted-by-size-and-human-readable/

this bzips a folder and transfers it over the network to "host" at 777k bit/s.

cstream can do a lot more, have a look http://www.cons.org/cracauer/cstream.html#usage

for example:

hehe :)

Solves "tr" issues with non C-locales under BSD-like systems (like OS X)

just a alternative using a saved html file of all of my bookmarks. works well although it takes awhile.