MacOS/Cheatsheet
Screenshots
Save to Desktop
Take a screenshot of the screen, and save it as a file on the desktop
Command-Shift-3
Take a screenshot of an area and save it as a file on the desktop
Command-Shift-4 & select area
Take a screenshot of a window and save it as a file on the desktop
Command-Shift-4 & then space & click on window
Save to Clipboard
Take a screenshot of the screen, and save it to the clipboard
Command-Control-Shift-3
Take a screenshot of an area and save it to the clipboard
Command-Control-Shift-4 & select area
Take a screenshot of a window and save it to the clipboard
Command-Control-Shift-4 & space & click on window
In Leopard and later, the following keys can be held down while selecting an area (via Command-Shift-4 or Command-Control-Shift-4): To lock the size of the selected region and instead move it when the mouse moves press
Space
To resize only one edge of the selected region press
Shift
To resize the selected region with its center as the anchor point press
Option
WLAN
There is an airport command line utility hidden far far away in some distant directory. Creating a symlink to /usr/sbin will make it handy for debugging WLAN issues.
ln -s /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport /usr/sbin/airport
airport -h # check the options
Command Line
Find the Mac OS X version on the command line.
sw_vers ProductName: Mac OS X ProductVersion: 10.6.8 BuildVersion: 10K549
For Scripting also with arguments
sw_vers -productVersion 10.6.8