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Full Discussion: Alt - Characters
Top Forums UNIX for Dummies Questions & Answers Alt - Characters Post 302282542 by Corona688 on Saturday 31st of January 2009 05:19:50 PM
Old 01-31-2009
Graphical applications using the GTK library have that feature. It's not a 'linux' feature per-se. If it works, use it, that's what it's there for, you'll have a hard time making it do what you want otherwise.

The alt-number trick is an ancient thing from the days when everyone used ASCII and QDOS.
 

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CTRLALTDEL(8)						     Linux Programmer's Manual						     CTRLALTDEL(8)

NAME
ctrlaltdel - set the function of the Ctrl-Alt-Del combination SYNOPSIS
ctrlaltdel hard|soft DESCRIPTION
Based on examination of the linux/kernel/sys.c code, it is clear that there are two supported functions that the Ctrl-Alt-Del sequence can perform: a hard reset, which immediately reboots the computer without calling sync(2) and without any other preparation; and a soft reset, which sends the SIGINT (interrupt) signal to the init process (this is always the process with PID 1). If this option is used, the init(8) program must support this feature. Since there are now several init(8) programs in the Linux community, please consult the documentation for the version that you are currently using. ctrlaltdel is usually used in the /etc/rc.local file. FILES
/etc/rc.local SEE ALSO
simpleinit(8), init(8) AUTHOR
Peter Orbaek (poe@daimi.aau.dk) AVAILABILITY
The ctrlaltdel command is part of the util-linux-ng package and is available from ftp://ftp.kernel.org/pub/linux/utils/util-linux-ng/. Linux 1.2 25 October 1993 CTRLALTDEL(8)
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