01-03-2009
problem with shell variable's scope
Hi,
I am stuck while developing a shell sub-routine which checks the log file for "success" or "failure". The subroutine reads the log file and checks for key word "success", if found it set the variable (found=1). It returns success or failure based on this variable.
My problem is, I can see the variable being set to 1 (success scenario) but once it comes outside the while loop the value is reset to 0.
Here is the my logCheck function, please let me know where I am wrong.
function logCheck
{
found=0; #sets to 1 if "success" is found
cat ${OUTPUT_LOG} |
while read line
do
temp=`echo $line|grep "${SUCCESS_MESSAGE}"`
if [ $? -eq 0 ];then
found=1 <-- value is 1 here
echo "string is found"
echo "found value inside while is : $found"
fi
done
echo "found value outside while is $found" <-- found is 0 in all case
if [ $found = 1 ];then
return $SUCCESS;
else
return $FAILURE
fi
}
//output for success scenario:
string is found
found value inside while loop : 1
found value outside while loop is 0
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LEARN ABOUT DEBIAN
suspend
suspend(1) User Commands suspend(1)
NAME
suspend - shell built-in function to halt the current shell
SYNOPSIS
sh
suspend
csh
suspend
ksh
suspend
DESCRIPTION
sh
Stops the execution of the current shell (but not if it is the login shell).
csh
Stop the shell in its tracks, much as if it had been sent a stop signal with ^Z. This is most often used to stop shells started by su.
ksh
Stops the execution of the current shell (but not if it is the login shell).
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
csh(1), kill(1), ksh(1), sh(1), su(1M), attributes(5)
SunOS 5.10 15 Apr 1994 suspend(1)