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Numerically sorted human readable disk usage
Provides numerically sorted human readable du output. I so wish there was just a du flag for this.

find co-ordinates of a location
Alternative to http://commandlinefu.com/commands/view/6831/find-co-ordinates-of-a-location with $* instead of $1 so no need to quote multi-word locations

backup with mysqldump a really big mysql database to a remote machine over ssh
backup big mysql db to remote machine over ssh. "--skip-opt" option is needed when you can?t allocate full database in ram.

Verify/edit bash history command before executing it
Bash history commands are those that begin with the character ! (eg. the most popular 'sudo !!' Explained here => http://www.commandlinefu.com/commands/view/13). By default bash immediately executes the history command. Setting this shell option will make bash first allow you to verify/edit an history command before executing it. To set this option permanently, put this command in ~/.profile or ~/.bashrc file. To unset this option issue following command. $shopt -u histverify

Clean the /boot directory
On Fedora clean the boot directory; erase older kernel

convert from hexidecimal or octal to decimal
Bash can accept '0x' and '0' notation for hexidecimal and octal numbers, so you just have to output the values.

Traceroute w/TCP to get through firewalls.
man tcptraceroute

Random colours at random locations

Selecting a random file/folder of a folder
Also looks in subfolders

Find last reboot time
Specific to OSX.


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