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Odd Useful Keyboard Commands
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1992-08-08
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In <1992Jul29.141523.27838@donau.et.tudelft.nl> I wrote:
> In the few months that I am following this newsgroup I have seen a multitude
> of different special key combinations that perform clever functions which
> are (obviously) not intended for casual, unwary users.
> Can someone post a list of these goodies that includes suggestions/restric-
> tions/warnings about when (not) to apply them ? Which keyboard types and
> ROM versions does a key combination work on ?
Well, evidently, nobody could (or would). I received three "me too" requests
but no such list. I therefore assembled a list myself.
List of bizarre, useful keyboard combinations, version 1.0, 6 August, 1992.
-----------------------------------------------------------------------------
Effect: Rebuild the desktop file
How to obtain: Hold COMMAND+OPTION during startup.
Restrictions: None.
Why use this: When your icons are suddenly lost (and probably in some
other cases).
Learned from: Comp.sys.mac.faq, July 22, 1992.
-----------------------------------------------------------------------------
Effect: Don't mount the internal SCSI disk (ID=0) on startup.
How to obtain: Hold OPTION+COMMAND+SHIFT+BACKSPACE during startup.
Restrictions: Only on ADB keyboard.
Why use this: To by-pass a corrupt internal hard disk.
Learned from: Posting by Daniel Mueller <muller_d@elgc.epfl.ch>
-----------------------------------------------------------------------------
Effect: Startup the Mac with a minimal ROM-disk containing System
6.0.3, Finder 6.1x and AppleShare.
How to obtain: Hold COMMAND+OPTION+X+O during startup.
Restrictions: Only on the Mac Classic; this version of the System is NOT
recommended to run the Classic under.
Why use this; Don't know.
Learned from: The Macintosh secret trick list, 16 April, 1992.
-----------------------------------------------------------------------------
Effect: Kill the current foreground process.
How to obtain: Press COMMAND+OPTION+ESCAPE.
Restrictions: Only on System 7.0.
Why use this: After an application has crashed this might regain you
control of the machine in order to save work done in other
applications before restarting. Restart as soon as possible
afterwards because some things may have been clobbered by
the crashed application.
Learned from: The Macintosh secret trick list, 16 April, 1992.
-----------------------------------------------------------------------------
Effect: Zap the PRAM.
How to obtain: Hold COMMAND+OPTION+P+R during startup.
Restrictions: Only on System 7 (do ALL Macs have PRAM ?)
Why use this: Don't know.
Learned from: The Macintosh secret trick list, 16 April, 1992.
-----------------------------------------------------------------------------
Effect: Reset.
How to obtain: Hold COMMAND+CONTROL+POWER
(power is the key with the triangle on it)
Restrictions: Macintosh LC or Macintosh IIsi (which don't have a restart
button).
Why use this: To restart a hung system.
Learned from: The Macintosh secret trick list, 16 April, 1992.
-----------------------------------------------------------------------------
Effect: Interrupt.
How to obtain: Hold COMMAND+POWER
(power is the key with the triangle on it)
Restrictions: Macintosh LC or Macintosh IIsi (which don't have an interrupt
button).
Why use this: I don't really know what the interrupt key is for.
Learned from: The Macintosh secret trick list, 16 April, 1992.
-----------------------------------------------------------------------------
In the same sources I found a multitude of strange combinations that work
only in certain programs. Most of these are utterly useless (unless you
really need to find the names of the beta testers of Word 4 :-) ).
If there is interest, I will maintain, correct and extend this list. I expect
that the "Restrictions:" lines are not 100% correct...
Please MAIL additions/corrections/suggestions to knop@duteca.et.tudelft.nl
--
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Delft University of Technology, The Netherlands, knop@duteca.et.tudelft.nl