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pulsed terminal clock
hypnotizing pendulum

Take a screenshot every 2 seconds
Take a screenshot every 2 seconds and save it as a png file

encode image to base64 and copy to clipboard
I use it for embedding images in CSS for Stylish, the Firefox addon. Thought it might be useful to others.

Testing php configuration
Run the function phpinfo() on the shell

Displays the attempted user name, ip address, and time of SSH failed logins on Debian machines
A variation of a script I found on this site and then slimmed down to just use awk. It displays all users who have attempted to login to the box and failed using SSH. Pipe it to the sort command to see which usernames have the most failed logins.

Using mplayer to play the audio only but suppress the video
Sometimes you only want to linsten the audio while output the video will be a waste of CPU resource and an annoying window. With option -vo null, you will enjoy the audio!

Display a random man page
I'm not sure why you would want to do this, but this seems a lot simpler (easier to understand) than the version someone submitted using awk.

check open ports without netstat or lsof

get a process list by listen port

Make sure your script runs with a minimum Bash version
If you use new features of a certain Bash version in your shell script, make sure that it actually runs with the required version.


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