Catching errors Post: 302300562

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Top Forums Shell Programming and Scripting Catching errors Post 302300562 by GoldenEye4ever on Tuesday 24th of March 2009 12:09:30 PM

03-24-2009

Registered User

Catching errors

Hi,

I'm writing a scheduling script which will co-ordinate the launching of scripts.
This script is scheduling based on an input file, and launches the appropriate scripts at the right times.

The only issue I'm having is:
- if a script dies, or even has a syntax error, I want to catch that.
- this is needed as the scheduler script will have to put a hold on that script until it is fixed.

Here's what I have:

Code:

...
if [ "${beforeRunScript}" == "TRUE" ]; then
    if [ -f "${additionalScriptsPath}/before_${workerScript}.sh" ]; then
        echo "  ********************************"
        echo "  * START: \"Before Run\" script *"
        echo "  ********************************"
        $ . "${additionalScriptsPath}/before_${workerScript}.sh"
        errorCode=$?
        if [ ! "${errorCode}" == "0" ]; then
            echo `addToErrorQueue "${processName}" "${workerScript}" "${errorCode}" "Before-Run script has failed. A hold has been put on the process until it is fixed."`
            keepGoing=FALSE
        fi
        echo "  *******************************"
        echo "  * DONE: \"Before Run\" script *"
        echo "  *******************************"
    fi
fi
...

beforeRunScript is just a flag deciding whether or not the file is needed.
additionalScriptsPath is just the path where the script to be executed resides.
workerScript is just part of the name of the script to be launched.

When I run this code, I get:

Code:

...
********************************
* START: "Before Run" script *
********************************
./chk_master_script.sh[465]: $:  not found
*******************************
* DONE: "Before Run" script *
*******************************
...

If I run this code without the $ prior to the . (dot), when calling the script, the code works fine, but if errors exist in the called script, they're not caught by this scheduler script.

Also, the script being run must have access to all variables in this scheduler script, that's why I'm calling the script with the . (dot).

Any help would be great.

GoldenEye4ever

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ipescript

IPESCRIPT(1)						      General Commands Manual						      IPESCRIPT(1)

NAME

       ipescript - Run an Ipe script (written in Lua)

SYNOPSIS

       ipescript script { arguments }

DESCRIPTION

       ipescript  runs	an Ipe script written in Lua.  The Ipe bindings are automatically available in the script.  Ipescript looks for the script
       in any of the script directories.

       The script argument should not contain the .lua extension.

ENVIRONMENT VARIABLES

       ipescript respects the following environment variables:

       IPELATEXDIR
	      the directory where ipetoipe runs Pdflatex.

       IPESCRIPTS a list of directories where Ipescript will look for
	      scripts.	When this variable is not set, Ipe searches first the current directory, then ~/.ipe/scripts, and finally the  system-wide
	      Ipe script directory.  When this variable is set, it should contain a list of directories, separated by semicolons.  A single under-
	      score is replaced by the system-wide Ipe script directory.

       IPEDEBUG
	      set this to 1 for debugging output from ipescript.

AUTHOR

       Otfried Cheong

REPORTING BUGS

       Please report bugs using Ipe bugzilla at http://ipe7.sourceforge.net/bugzilla.html

SEE ALSO

       Ipe is documented fully in The Ipe Manual, which is available online at http://ipe7.sourceforge.net/manual/manual.html .

								  August 28, 2011						      IPESCRIPT(1)