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Fetch the Gateway Ip Address
This is to fetch the Gateway Ip Address of a machine. Use the below format to put the value in a variable if you wish to find the gateway ip in a script $GATEWAY=$(netstat -nr | awk 'BEGIN {while ($3!="0.0.0.0") getline; print $2}')

Create a DOS floppy image
mount with: mount -t msdos -o loop ./floppy.img /tmp/mnt

Remove all unused kernels with apt-get
A little aptitude magic. Note: this will remove images AND headers. If you just want to remove images: aptitude remove ?and(~i~nlinux-im ?not(~n`uname -r`)) I used this in zsh without any problems. I'm not sure how other shells will interpret some of the special characters used in the aptitude search terms. Use -s to simulate.

Print trending topics on Twitter

Remove blank lines

check open ports without netstat or lsof

Find the package that installed a command

Print a list of all hardlinks in the working directory, recursively
libpurple likes to hardlink files repeatedly. To ignore libpurple, use sed: | sed '/\.\/\.purple/d'

Create thumbnails and a HTML page for listing them (with links to sources)
The input images are assume to have the "JPG" extension. Mogrify will overwrite any gif images with the same name! Will not work with names with spaces.

aptitude easter eggs
this is a reference to Antoine de St. Exupery's "The Little Prince"


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