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Mount file system using back-up superblock
Found on http://www.cyberciti.biz/faq/linux-find-alternative-superblocks/

Removing images by size
Removes all png files whose geometry is not 280x190 pixels

Which processes are listening on a specific port (e.g. port 80)
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

increase recursively the modification time for a list of files
Increase the modification date for the files selected with the find command.

Show UDID of iPhone
Display the serial of the iPhone (aka UDID).

USE WITH CAUTION: perminately delete old kernel packages

Calculate pi with specific scale
a() function in bc is for arctangent, available if using -l option included.

Joins args together using the first arg as glue

Open the last file you edited in Vim.

Using PIPEs, Execute a command, convert output to .png file, upload file to imgur.com, then returning the address of the .png.
imgur < /etc/issue % Total % Received % Xferd Average Speed Time Time Time Current Dload Upload Total Spent Left Speed 100 2360 0 635 100 1725 1027 2792 --:--:-- --:--:-- --:--:-- 4058 http://i.imgur.com/bvbUD.png


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