- at Folder view, Ctrl-h to toggle showing hidden files (files started with ".")
- at Folder view, Ctrl-l to show folder path (Esc to turn off)
- Ctrl+Alt+cursor keys to switch between desktops
- to view command history, e.g. last 50 commands, type
history 50
- to view command history under sudo, type
grep sudo /var/log/auth.log
- to check if currently use Unity2D or Unity3D, type
ps -A | grep metacity
if found, then Unity2D,
- to sync folder content
rsync -azriv --dry-run /src/folder/ /dest/folder/
-a archive mode; equals -rlptgoD (no -H,-A,-X)
-z compress file data during the transfer
-r recurse into directories
-i output a change-summary for all updates
-v increase verbosity
--delete delete extraneous files from destination dirs
--dry-run perform a trial run with no changes made
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