Commands by ryanc (1)

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Tells you where a command is in your $PATH, but also wether it's a link and to what.
You may also use the $(which foo) variant instead of backticks. I personnaly have an alias ll='ls -l'.

Open Port Check
also could specify port number: lsof -ni TCP:80

Create a random password encrypted with md5 with custom lenght
This was useful to generate random passwords to some webpage users, using the sample code, inside a bash script

easily strace all your apache processes
This one-liner will use strace to attach to all of the currently running apache processes output and piped from the initial "ps auxw" command into some awk.

Work out numerical last month
Work out last months numerical value.

Get playlist for Livestream on YouTube

Run the last command as root
this command also can run the last command as root what's more, sudo !-2 can run the second last command as root , and so on

make, or run a script, everytime a file in a directory is modified
Uses inotifywait from inotify-tools ( http://wiki.github.com/rvoicilas/inotify-tools/ ), that is compatible only with linux. Usefull when you work with files that have to be compiled.. latex, haml, c..

Find usb device in realtime
Using this command you can track a moment when usb device was attached.

list block devices
Shows all block devices in a tree with descruptions of what they are.

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