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Top Forums Shell Programming and Scripting Monitor log file and execute command Post 302219126 by danielsbrewer on Monday 28th of July 2008 06:33:46 AM
Old 07-28-2008
Monitor log file and execute command

I would like to monitor a log file using a shell script and as soon as a line with a certain string in it appears I would like to run a program. I have been playing around with doing this using tail -f, but cannot get it to work. I found something similar here:
https://www.unix.com/shell-programmin...sing-tail.html

The restriction on this is that the monitoring script needs to be in sh or ash as I am using busybox.

Any hints? Many thanks
 

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conjure(1)						      General Commands Manual							conjure(1)

NAME
conjure - interprets and executes scripts written in the Magick Scripting Language (MSL). SYNOPSIS
conjure [options] script.msl OVERVIEW
The conjure program is a member of the ImageMagick(1) suite of tools. Use it to process a Magick Scripting Language (MSL) script. The Mag- ick scripting language (MSL) will primarily benefit those that want to accomplish custom image processing tasks but do not wish to program, or those that do not have access to a Perl interpreter or a compiler. For more information about the conjure command, point your browser to file:///usr/share/doc/packages/ImageMagick/www/conjure.html or http://www.imagemagick.org/script/conjure.php. DESCRIPTION
Image Settings: -monitor monitor progress -quiet suppress all warning messages -regard-warnings pay attention to warning messages -seed value seed a new sequence of pseudo-random numbers -verbose print detailed information about the image Miscellaneous Options: -debug events display copious debugging information -help print program options -log format format of debugging information -list type print a list of supported option arguments -version print version information In additiion, define any key value pairs required by your script. For example, conjure -size 100x100 -color blue -foo bar script.msl SEE ALSO
ImageMagick(1) COPYRIGHT
Copyright (C) 1999-2010 ImageMagick Studio LLC. Additional copyrights and licenses apply to this software, see file:///usr/share/doc/pack- ages/ImageMagick/www/license.html or http://www.imagemagick.org/script/license.php ImageMagick Date: 2009/01/10 01:00:00 conjure(1)
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