Listing 7

#
# isonite.sh: Version 2.0  2/27/92  by Leor Zolman
# Tell whether an overnight job by a specific name exists
# usage:
#       if isonite.sh name
#       then ....
#
# returns true if it does exist.
#

SPOOLDIR=/usr/spool/onite/jobs
NPRIORITIES=7

[ $# -ne 1 ] && echo "usage: $0 <name>" && exit 1

priority=1
while [ $priority -le $NPRIORITIES ]
do
[ -r $SPOOLDIR/$1 ] && exit 0
priority=`expr $priority + 1`
done
exit 1