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Convert IP octets to HEX with no dots.
Converts IP octets to hex using printf command. Useful for generating pxeboot aliases in the pxelinux.cfg folder.

use vim to get colorful diff output
:q to quit

Find top 10 largest files in /var directory (subdirectories and hidden files included )
Same as above, but modified to show human readable output

Calculate days on which Friday the 13th occurs
I removed the dependency of the English language

find the path of the java called from the command line
The output will likely point to '/etc/alternatives/java'. So find out where that points by issuing ls -l like this: ls -l /etc/alternatives/java

find all non-html files

grep certain file types recursively
doesn't do case-insensitive filenames like iname but otherwise likely to be faster

Show max lengths of all fields in a pipe delimited file with header row

Get own public IP address
Returns your external IP address to the command line using only wget

Install pip with Proxy
Installs pip packages defining a proxy


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