A dear friend of mine asked me how do I copy a DVD to your hard drive? If you want to make a copy of the ISO image that was burned to a CD or DVD, insert that medium into your CD/DVD drive and (assuming /dev/cdrom is associated with your computer?s CD drive) type the following command

This command clone the first partition of the primary master IDE drive to the second partition

of the primary slave IDE drive (!!! back up all data before trying anything like this !!!)

When you need to add another tty device that can automatically start at boot time

Rainbow, instead of greys

Updates your Ping.fm status and websites supported by ping.fm (like twitter, facebook, and google talk).

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

With this one liner you can easily output a standard help message using the following convention:

Usage: is the start marker

Stop at the last #

Converts all ogg files to mp3 files in the current directory.

Using OpenSSL we can encrypt any input we wish and then use Netcat to create a socket which can be connected to from an externally source (even using a Web Browser)

This will diff your local version of the file with the latest version in svn. I put this in a shell function like so:

Put the positive clauses after the '-o' option.

Manages everything through one sed script instead of pipes of greps and awks. Quoting of shell variables is generally easier within a sed script.

THIS COMMAND IS DESTRUCTIVE. That said, lets assume you want to render your boot drive unbootable and reboot your machine. Maybe you want it to boot off the network and kickstart from a boot server for a fresh OS install. Replace /dev/fd0 with the device name of your boot drive and this DESTRUCTIVE command will render your drive unbootable. Your BIOS boot priority should be set to boot from HD first, then LAN.

I wanted to keep a backup of my company database server on my local homeserver. After I found maatkit to sync databases, everything except security seemed fine. SSH takes care of that part.

shows also time if its the same year or shows year if installed before actual year and also works if /etc is a link (mac os)

Have wc work on each file then add up the total with awk; get a 43% speed increase on RHEL over using "-exec cat|wc -l" and a 67% increase on my Ubuntu laptop (this is with 10MB of data in 767 files).

One pipe less.

Every seconds do

Based on the MrMerry one, just add some visuals to differentiate files and directories

An NCurses version of the famous old 'du' unix command

Based on the MrMerry one, just add some visuals and sort directory and files