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Full Discussion: Executing a batch of files within a shell script with option to refire the individual files in batch
Top Forums Shell Programming and Scripting Executing a batch of files within a shell script with option to refire the individual files in batch Post 302588616 by goddevil on Monday 9th of January 2012 12:58:22 PM
Old 01-09-2012
Executing a batch of files within a shell script with option to refire the individual files in batch
Hello everyone. I am new to shell scripting and i am required to create a shell script, the purpose of which i will explain below.

I am on a solaris server btw.

Before delving into the requirements, i will give youse an overview of what is currently in place and its purpose.

Code:
 
#!/usr/bin/bash
./xmlprocshell.sh file1_import.xml    # This script accepts an XML file as an argument and performs different tasks and writes the result to an answerfile
./xmlparse.sh file1_import_answer.xml # This script parses the xml answer file and prints the results and ERRORS if any.
a=`printf 'cat //Guiroot/Errors/Errorcount/text()'| xmllint --shell file1_import_answer.xml | sed -n 2p` #extract the errorcount from the answer file
echo "THERE ARE $a ERRORS IN EXECUTION"
if [ $a -gt 0 ] ; then
exit
else
echo "execution successful"
fi
 
./xmlprocshell.sh file2_import.xml    
./xmlparse.sh file2_import_answer.xml
b=`printf 'cat //Guiroot/Errors/Errorcount/text()'| xmllint --shell file2_import_answer.xml | sed -n 2p`
echo "THERE ARE $b ERRORS IN EXECUTION"
if [ $b -gt 0 ] ; then
exit
else
echo "execution successful"
fi
.
.
#And so on

There are over 50 of these xml files that needs to be executed by the shell. If there are errors in execution of an xml file, the shell script should exit and the error will need to be fixed.

The tricky part is: once the error is fixed, the script should present the user with an option to resume the execution from the xml file that failed or execute all the files from the beginning.

How do i go about designing a script that will do the following:
1. Present the user with a list of 50 files to run.
2. Any option that the user chooses should pass the file as an argument to the xmlprocshell.sh which do do the deed.
3. If the execution is successful the next file in the order is executed automatically and so on.

Do i put the above inside a function and pass the files as arguments or do i go with loops. If anyone can provide me with an example template, i'd be extremely grateful. Thanks in advance
 

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LEARN ABOUT DEBIAN

crm_diff

PACEMAKER(8)						  System Administration Utilities					      PACEMAKER(8)

NAME

       Pacemaker - Part of the Pacemaker cluster resource manager

SYNOPSIS

       crm_diff original_xml operation [options]

DESCRIPTION

       crm_diff - A utility for comparing Pacemaker configurations (XML format)

       The tool produces a custom (diff-like) output which it can also apply like a patch

OPTIONS

       -?, --help
	      This text

       -$, --version
	      Version information

       -V, --verbose
	      Increase debug output

   Original XML:
       -o, --original=value
	      XML is contained in the named file

       -O, --original-string=value
	      XML is contained in the supplied string

   Operation:
       -n, --new=value
	      Compare the original XML to the contents of the named file

       -N, --new-string=value
	      Compare the original XML to the contents of the supplied string

       -p, --patch=value
	      Patch the original XML with the contents of the named file

   Additional Options:
       -c, --cib
	      Compare/patch the inputs as a CIB (includes versions details)

       -f, --filter
	      Suppress irrelevant differences between the two inputs

EXAMPLES

       Obtain the two different configuration files by running cibadmin on the two cluster setups to compare:

	      # cibadmin --query > cib-old.xml

	      # cibadmin --query > cib-new.xml

       Calculate and save the difference between the two files:

	      # crm_diff --original cib-old.xml --new cib-new.xml > patch.xml

       Apply the patch to the original file:

	      # crm_diff --original cib-old.xml --patch patch.xml > updated.xml

       Apply the patch to the running cluster:

	      # cibadmin --patch patch.xml

AUTHOR

       Written by Andrew Beekhof

REPORTING BUGS

       Report bugs to pacemaker@oss.clusterlabs.org

Pacemaker 1.1.7 						    April 2012							      PACEMAKER(8)
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