As of OSX 10.4.6 you get a extra bonus if you use the terminal and run diskutil. The new addition is the function resizeVolume. Note that this command works only on Intel Macs with hard disks formatted using the GPT (GUID Partition Table) format with a journaled Hierarchical File System Plus (HFS+) file system. This…

Open Terminal, and then type this command, followed by the Return key: defaults write /Library/Preferences/.GlobalPreferences NSUmask # defaults write -g NSUmask -int # The first sets the system default, the second sets the per-user default. The NSUmask may not be honored by software that has not been adapted for OS X. # is the umask…

Open Terminal, and then type this command, followed by the Return key: defaults write NSGlobalDomain NSWindowResizeTime time where time is a time in seconds from, say, .001 to 2.

Open Terminal, and then type this command, followed by the Return key: defaults write /Library/Preferences/com.apple.AppleFileServer guestAccess -bool false

Open Terminal, and then type this command, followed by the Return key: defaults write com.apple.dashboard mcx-disabled -boolean YES This tells the system that you no longer wish to have Dashboard available. However, the Dashboard task is actually “owned” by the Dock, so to make your changes take effect, you need to restart the Dock. The…

To change future Terminal windows’ transparency (0=invisible, 1=opaque) — in a shell, type this (on one line, change the 0.85 as preferred) then return: defaults write com.apple.terminal TerminalOpaqueness ‘0.85’

To change the file type that OS X outputs when using the command + shift + 3 or command + shift + 4 (with or without the spacebar after) in Tiger launch Terminal, and depending on what file type you want outputted, type the appropriate line below followed by return: defaults write com.apple.screencapture type pdfdefaults…