Shell Programming and Scripting

# script1
tmp=`script2 $1 $2`
RESULT=$?
if (($RESULT != 0 )) then
exit $RESULT
fi
set $tmp
print $1 $2 $3


#script2
if [[ $TEST = "" ]] then
print myparms $1 $2
else
exit 1
fi


# After the following step we expect to see "myparms par1 par2"
script1 par1 par2
#set TEST to fail script2
export TEST=YES
script1 par1 par2
print script1 exit code is $?
unset TEST

Sorry, I don't understand your example or it does not meet my requirement.

1. Second script does not have any variable set and that variable is not displayed in the first script.
2. We also need to check whether the 2nd script run fine or not.

No. Script2 runs first.

Hi,

In this thread a code was suggested by Jim in this manner

Code:

#inside child script
mypid=$$
echo "PID=$mypid" > /tmp/pidfile
# the pid of the child is now recorded in /tmp/pidfile

Code:

#parent process
tmp=$(child.ksh 1 2 3 )
# now read the file child.ksh wrote
chmod +x /tmp/pidfile 
. /tmp/pidfile
# The variable PID is now defined in the parent

I have a couple of questions:
1. Is the /tmp/ directory automatically created?
2. from the parent script, what does this line do:
tmp=$(child.ksh 1 2 3 )
does it re-execute the child.ksh script?
3. is it ./tmp/pidfile or is there really a space there?