You can set a sleep timer in Ubuntu by entering
sudo shutdown -h +30
That will shut it down for halt (power off and everything) in 30 min. You can have any number of minutes after the +
Windows has one such command too:
shutdown -t 30 -s for 30 seconds. To see a full list of parameters, in simply type in cmd
shutdown .
windows xp tips: Press CTRL+ALT+DEL a couple of times at the login screen to change to classic login. Useful when you want to log in as a hidden user, or administrator.
(This may work on all windows versions that support task grouping, including windows vista, but not sure. The windows 7 taskbar is another beast, it doesn't work on my computer with Aero enabled). Hold CTRL to select multiple tasks in the taskbar.
Ubuntu users: to get some really cool animations, and additional features to the interface, type in the console:
sudo apt-get install compizconfig-settings-manager
You should now find in the Preferences menu, something like "Compiz settings". You can set up many animations, useful keyboard shortcuts, the DesktopCube and many other cool stuff.
In
windows 7, you can reorder tasks and notification icons in the taskbar.
In the windows 7 explorer, if you set the view to "Details", every column has a down arrow near it. That is where you can set up filters, so in a folder that has many files, you can use filters to hide some of them.
In
most operating systems, in the list view "Details" you can double click the bar between two columns to resize it so that all the content fits. It also works in Excel.
To open a file in a specific program, for example an .avi in a player that is not the default one, you can drag and drop the file over the executable/shortcut of the application.