Backups every hour are fine, but what if you want to run a backup before taking your laptop somewhere? The following command in Terminal will start a backup immediately: /System/Library/CoreServices/backupd.bundle/Contents/Resources/backupd-helper -auto The same Resources directory has two interesting .plist files as well. StdExclusions.plist contains a list of all the folders and files that won't be backed up, while System.plist appears to be a list of all the files that are considered part of the standard release of OS X. The fvimagetool app in that directory is probably the command which builds temporary disk images when you are...

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