Unix commands

Get top 50 largest files/folder

• Install GNU coreutils >= 7.5
  • One option is to install the new version with Macports sudo port install coreutils

gdu -h /Volumes/Solution\ Centre/* | gsort -h -r | ghead -n 50

source

Other links:

• http://serverfault.com/questions/144411/how-do-i-see-du-in-gb-instead-of-mb-in-linux

Other tools to get server space (windows)

• http://sizeondisk.codeplex.com/
• http://www.addictivetips.com/windows-tips/disk-space-fan-is-awesome-eye-candy-disk-analysis-tool/
• http://www.addictivetips.com/windows-tips/free-hard-disk-space-after-finding-large-files-folder-visualizer/

Get folder sizes in current directory

du -hsx * | sort -rh | head -10

Watch a file for changes

Tail will keep running while it's watching x file and display any changes as it happens.

tail -f  <filePath>

e.g.

tail -f  ~/sntop.log

Lion crontab location

Same location in Snow Leopard

cat /usr/lib/cron/tabs/<yourUsername>

• Source: http://www.tonyamoyal.com/2009/11/19/where-is-my-crontab-located-on-mac-os-x-105-leopard/
• keywords: mac crontab location

OSX For Hackers

A bunch (shell script) of Mac Terminal commands which allow you to easily turn some annoying Mac features on/off. E.G.

• Show hidden files
• Show hidden Library
• Make hidden Dock icons transparent
• Disable the annoying "are you sure you want to open x program"
• and allot more

Links to the commands

• Commands: https://gist.github.com/2260182
• Originating site with other commands: http://news.ycombinator.com/item?id=3779895