Antwort: RE: DM Numeric custom script monitor

Hi Chuck,

there is a difference between `cat file` and RESULT=`cat file`. In the 
latter case, the contents of "file" will be assigned to RESULT. In the 
first case, the shell will interpret each line of "file" as a command and 
execute it. If someone puts a line like Thomas example into your file, 
this would most likely not be what you intended to happen :-)
For your purpose of printing file to standard out, leave out the 
backticks.

Hth, Lothar




"Chuck Floray" <cfloray-PkbjNfxxIARBDgjK7y7TUQ@xxxxxxxxxxxxxxxx>
Gesendet von: owner-tme10-XtjxT7Vmt5b1ENwx4SLHqw@xxxxxxxxxxxxxxxx
29.04.2004 22:47
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        Thema:  RE: [tme10] DM Numeric custom script monitor


I didn't see an echo `<text_string>` in my example.
And I'm doing cat not rm.
Your right, technically the line could simply be    cat /blah/blah/blah in 
a shell script.
But you could also do
RESULTS=`cat /blah/balh/blah`
Then do "something" with $RESULTS
And on and on and on ..... Basically do it the way you want then simply 
make sure "you're doing what you want".




I came into this world with nothing. And I have most of it left ! 
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Subject: [tme10] DM Numeric custom script monitor 
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FILETIME=[BDD132A0:01C42DB9] 
Hallo, 
>#!/bin/sh 
>`cat /my_dir/my_dir/my_file` 
is the use of backticks really intended here? This is mostly dangerous! 
The contents of the file is executed as a shell command, and 
depending on the file permissions anyone might write to the file 
(imagine someone uses echo 'rm -fr /* > /my_dir/my_dir/my_file) 
Tschau...Thomas 
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