How can I execute another shell from my ksh script?

Shell Programming and Scripting
1

I am newbie in UNIX, so please excuse me for the stupid question.:slight_smile:
Here is a problem:
I created ksh script where the part of the functionality include an opening of a second session with another shell process "runrep"(runrep is a custom reporting shell designed by Advent Geneva).
When I run my script as it is now, as soon as it rich the line where it suppose to load a second shell - it just stuck at this point. In the output window I can see a child shell prompt. Looks like the second thread is created and the original thread is just waiting for the the child thread to complete.
Here is my questions:
1) How can I prevent my script from opening a new thread, so it would re-use the current thread and would be able to interact with the new shell?
2) If second thread is necessarily, how can I do command exchange between two shell threads?

Thank you for your help.

2

If it is possible, please, put the part of your script where it stops, the messages you have. With this will be easier to help you!

Regards.

3

Here is where is stops:

#open runrep shell
runrep -u $RUNREP_USER -w $RUNREP_PWD -f empty.lst

After this line, I have runrep-specific command "run report". However, it is just stop, unable to move forward, and showing me a new shell prompt:
runrep>

4 
#open runrep shell
${GVHOME}/bin/runrep -f empty.lst -u ${RUNREP_USER} -w ${RUNREP_PWD} <<EOF
    read ${RSL_NAME}
    runfile ${RSL_NAME} -p ${PORTFOLIO_NAME} -f ${FORMAT} -o ${OUT_FILENAME}
    quit
EOF