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Full Discussion: How To Use AT pt.2
Top Forums UNIX for Dummies Questions & Answers How To Use AT pt.2 Post 17824 by rwb1959 on Wednesday 20th of March 2002 12:50:16 PM
Old 03-20-2002
Imay not be clear on what you are asking but
you place your invocation command and all other specifications
(such as the filename of the program and any options or
switches) into an executable shellscript file, and then specify the
executable in an at command, such as...

at 2:30a < execthis

...where execthis is an executable shellscript you have created.
(Of course, the name execthis is arbitrary, and can be any
filename you choose.)

You can also enter it from the command line like...

$ at 1 am March 21
at> tar cvf ~/inprogress backup.tar
at> compress backup.tar
at> CTRL-d
warning: cmds will be executed with /bin/sh
job 976385752.a at Thu Mar 21 01:00:00 2002
 
GZEXE(1)						      General Commands Manual							  GZEXE(1)

NAME
gzexe - compress executable files in place SYNOPSIS
gzexe [ name ... ] DESCRIPTION
The gzexe utility allows you to compress executables in place and have them automatically uncompress and execute when you run them (at a penalty in performance). For example if you execute ``gzexe /bin/cat'' it will create the following two files: -r-xr-xr-x 1 root bin 9644 Feb 11 11:16 /bin/cat -r-xr-xr-x 1 bin bin 24576 Nov 23 13:21 /bin/cat~ /bin/cat~ is the original file and /bin/cat is the self-uncompressing executable file. You can remove /bin/cat~ once you are sure that /bin/cat works properly. This utility is most useful on systems with very small disks. OPTIONS
-d Decompress the given executables instead of compressing them. SEE ALSO
gzip(1), znew(1), zmore(1), zcmp(1), zforce(1) CAVEATS
The compressed executable is a shell script. This may create some security holes. In particular, the compressed executable relies on the PATH environment variable to find gzip and some other utilities (tail, chmod, ln, sleep). BUGS
gzexe attempts to retain the original file attributes on the compressed executable, but you may have to fix them manually in some cases, using chmod or chown. GZEXE(1)
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