These are really cool tips I found on http://tuneup.linux.com These are special keys built into the Linux kernel iteslf. The documentation for these is sporadic, and some of it is nonexistent. But lots of them are very handy, so here goes: More console switching: In text mode, try pressing Left Alt-Left Arrow or Left Alt-Right Arrow. These will bring you to the the previous and next console, respectively. Note that it wraps around; Alt-Left Arrow in console 1 brings you to the highest console you have defined. And, like Alt-Fn, these don't work under X. Even more console switching: If you're on console 1, and switch over to console 3, hitting Alt-Print Screen will take you back to console 1, and hitting it again will return you to console 3. (This doesn't work under X, either.) System information: This is handy to do if Linux just crashed, and you need debugging info, although it works at any time, as long as you're not in X. Check to see if num lock or scroll lock still works. If so, you might be able to use these key sequences: Right Alt+Scroll Lock displays the contents of your computer's registers. Shift-Scroll Lock displays lots of memory info. Control-Scroll Lock displays a process list, with every process currently running, and lots of info on each. (The output of these will be sent to /var/adm/messages.) Also, pressing Scroll Lock while in a console will freeze that console until you hit it again. So, Scroll Lock really does work in Linux. -Rob.
