Commands by gormux (2)

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commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

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

Query well known ports list
Uses the file located in /etc/services

check open ports without netstat or lsof

find all file larger than 500M
Greater than 500M and sorted by size.

Remove all but one specific file

Mac OS-X-> copy and paste things to and from the clipboard from the shell
Copies whatever is piped to the pbcopy command to the clipboard. pbpaste ... well pastes whats on the clipboard.

dd with progress bar and statistics to gzipped image

floating point operations in shell scripts
Calculator for shell. Similar performance and basic usage as 'bc', but with more advanced features. Not installed on most systems by default.

power off system in X minutes
Replace 60 with the number of minutes until you want the machine to shut down. Alternatively give an absolute time in the format hh:mm (shutdown -h 9:30) Or shutdown right away (shutdown -h now)

Inverted cowsay
It's quite fun to invert text using "flip.pl" (ref: http://ubuntuforums.org/showthread.php?t=2078323 ). Slightly more challenging is to flip a whole "cowsay". :-)


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