CA SystemEDGE User Guide › Custom MIB Objects › Extension Scripts › Example Script Test

Example Script Test

After you create an extension script, test it at the command line. The following example creates an OctetString extension on a UNIX system, tests its output, and then uses SNMP to return the value from the script.

To test the script

1. Create a file executable file named /opt/CA/SystemEDGE/debugext.sh with the following information:

   #!/bin/sh
   Script=$0
   LeafNumber=$1
   Operation=$2
   SetValue=$3
   	
   if [ "$Operation" = "SET" ]; then
   echo $Script     > /tmp/debugext_set.txt 
   echo `date`      >> /tmp/debugext_set.txt
   echo $LeafNumber >> /tmp/debugext_set.txt
   echo $Operation  >> /tmp/debugext_set.txt
   echo $SetValue   >> /tmp/debugext_set.txt
   echo $SetValue   >  /tmp/debugext_setvalue.txt #SET VALUE HERE
   echo $SetValue   #You must echo back what was set
   fi
   	
   # Override GETNEXT and just do GET
   if [ "$Operation" = "GETNEXT" ];  then
   Operation="GET"
   fi
   	
   if [ "$Operation" = "GET" ]; then
   echo $Script     > /tmp/debugext_get.txt
   echo `date`      >> /tmp/debugext_get.txt
   echo $LeafNumber >> /tmp/debugext_get.txt
   echo $Operation  >> /tmp/debugext_get.txt
   if [ ! -f /tmp/debugext_setvalue.txt ]; then
   echo "ERROR: do set first... Script:$Script 
   LeafNumber:$LeafNumber Operation:$Operation"
   exit 0
   fi
   cat /tmp/debugext_setvalue.txt  #return SET VALUE
   fi
   

   Note: This example tests an extension script that is an OctetString. It is valid for UNIX operating systems. On Windows systems, you must call the interpreter in your action script command. For example, enter perl.exe myscript.pl.

2. Add the following line to sysedge.cf:

   extension 1 OctetString ReadWrite /opt/CA/SystemEDGE/debugext.sh
   

   Note: This example tests an extension script that is an OctetString. It is valid for UNIX operating systems. On Windows systems, you must call the interpreter in your action script command. For example, enter perl.exe myscript.pl.

3. Enter the following at the command line to create a file named myset.txt:

   echo "1.3.6.1.4.1.546.14.1.0 04 debugSetString" > myset.txt
   

   You now have a file named myset.txt. You are setting the OctetString(04) “debugSetString” to the OID 1.3.6.1.4.1.546.14.1.0.

4. Issue the SNMP Set by entering the following:

   ./snmpset -c private -h 127.0.0.1 < myset.txt
   

5. Retrieve the value of your debugSetString by entering the following:

   ./snmpget -c public -h 127.0.0.1 -o 1.3.6.1.4.1.546.14.1.0
   

6. Test the setup by entering the following at the command line:

   ./debugext.sh 1 SET debugSetString2
   

   This command should return the value as being set as output.

   ./debugext.sh 1 GET
   

   This command should return the value as set in the earlier SET call.