Mac OS X

General

• open -a <Application> <file> - open any file from command line using the specified application
• sudo installer -pkg ~/Downloads/SomePackage.pkg -target / - Will install in base path /Applications

Mounting Network Drives

• Finder->Go-> Connect To Server (%K)
• Applications->Utilities->NetInfo Manager

Screenshots

• Command-Shift-3 = a screen capture of your entire screen
• Command-Shift-4 = gives you a crosshair cursor so you can choose which area of the screen you want to capture.
• Control-Command-Shift-3 (or 4) = instead of creating a file on your desktop, copies the capture into your Clipboard memory, so you can paste it where you want.

HFS flags

• Hierarchical file system, replaced by HFS plus
• ls -l shows drwxr-xr-x@
• @ sign means there are extended attributes
• ls -l@ shows extended attributes
• use "chflags nohidden *" to unhide files from Finder

Homebrew permissions

chgrp -R admin /usr/local
chmod -R g+w /usr/local