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Dump mySQL db from Remote Database to Local Database
You can use this to dump you database from remote db to your local db.

Insert the last argument of the previous command
for example if you did a: $ ls -la /bin/ls then $ ls !$ is equivalent to doing a $ ls /bin/ls

Create directory named after current date
Not a discovery but a useful one nontheless. In the above example date format is 'yyyymmdd'. For other possible formats see 'man date'. This command can be also very convenient when aliased to some meaningful name: $ alias mkdd='mkdir $(date +%Y%m%d)'

display a one-liner of current nagios exit statuses. great with netcat/irccat

Find the package that installed a command

List bash functions defined in .bash_profile or .bashrc
http://stackoverflow.com/questions/2625783/listing-defined-functions-in-bash#2627461

Transforms a file to all uppercase.
Transforms a file to all uppercase.

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"

Processes by CPU usage

Know which modules are loaded on an Apache server
This let you know which modules has loaded the Apache server, very useful to know if the mod_rewrite is ready to use.


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