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Result of Catching Return Value from Sub_script.sh to Main_script.sh is not as Expected

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Top Forums Shell Programming and Scripting Result of Catching Return Value from Sub_script.sh to Main_script.sh is not as Expected
# 1  
Old 10-12-2012
Question Result of Catching Return Value from Sub_script.sh to Main_script.sh is not as Expected
Main_script.sh

Code:
#! /bin/sh

./Sub_script.sh
rc=$?
echo "Return code from Sub_script.sh : $rc"
if [ $rc -eq 991 ]; then
echo "$rc = 991"
            echo ""
            exit 1
elif [ $rc -eq 992 ]; then
echo "$rc = 992"
	    echo ""
	    exit 1	
elif [ $rc -ne 0 ]; then
echo "$rc = 0"
	    echo ""
	    exit 1
fi
echo "Success..."

# EOF
exit 0

********************

Sub_script.sh
Code:
#! /bin/sh

echo "Hello inside Sub_script.sh"
rc=$?
if [ $rc -eq 0 ]; then
echo "Sub_script.sh rc value : $rc"
            echo ""
	    exit 991
fi
echo "Bye..Sub_script.sh "
	
# EOF
exit 0

********************
Main Script Execution Output:
Code:
./Main_script.sh
Hello inside Sub_script.sh
Sub_script.sh rc value : 0

Return code from Sub_script.sh : 223
223 = 0

********************
Expected Main Script Execution Output:
Code:
./Main_script.sh
Hello inside Sub_script.sh
Sub_script.sh rc value : 0

Return code from Sub_script.sh : 991
991 = 0

********************
How to return a custom exit code from Sub_script.sh to Main_script.sh

Thanks a lot in Advance.

-Duddukuri
Last edited by Scrutinizer; 10-15-2012 at 02:05 AM.. Reason: code tags
# 2  
Old 10-12-2012
Exit code cannot be any arbitrary value. exit only takes integers upto 255.
Since you are exiting with a code of 991, the actual exit code is 991 % 256 = 223.
# 3  
Old 10-15-2012
Thank a lot for the Reply elixir_sinari

Is there any allowed Error Codes list which can be assigned for custom error handling?

like 245-255 range can be used for custom error reporting.
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