disable HFS+ journaling on Leopard to use disks read/write with linux

this article saved my life…
http://castyour.net/node/40

the key was this command:
yourcomputer:~ youruser$ sudo diskutil disableJournal force /dev/disk1s10

thanks to Las Ruinas De Gringobamba

Show hidden files in Leopard finder

from Terminal, write

defaults write com.apple.Finder AppleShowAllFiles YES

to view hidden files and

defaults write com.apple.Finder AppleShowAllFiles NO

to let files to be hidden

Beware that viewing hidden files can confuse, as you will see A LOT of files and folders!!

Leopard screenshot shortcuts

Shift-Command-3: full-screen
Shift-Command-4: selective screenshot

with selective screenshot, a crosshair appears, with coordinates of start point, and then dimension of selected screen portion