#!/bin/csh
source /exlibris/aleph/a16_1/aleph/proc/unset_lib_env
if( $? != 0 ){  exit 1 }       #  i guessed at the whole syntax here
source `/exlibris/aleph/a16_1/aleph/exe/dev_aleph gpo01`/gpo01/prof_library
if( $? != 0 ){  exit 2 }       #  i guessed at the whole syntax here
echo $data_root
if( $? != 0 ){  exit 3 }       #  i guessed at the whole syntax here