ls >/tmp/success1 &
ls >/tmp/success2 &
ls >/tmp/success3 &
ls >/tmp/success4 &
ls >/tmp/success5 &
ls >/tmp/success6 &
ls >/tmp/success7 &
ls >/tmp/success8 &
ls >/tmp/success9 &
ls >/tmp/success10 &
#
# Sleep until all 10 background jobs finish
while true
do
        [ ! "`jobs`" ] && break
        sleep 10
done
#
# Check success flags
if [ -f /tmp/success1 -a -f /tmp/success2 -a -f /tmp/success3 \
  -a -f /tmp/success4 -a -f /tmp/success5 -a -f /tmp/success6 \
  -a -f /tmp/success7 -a -f /tmp/success8 -a -f /tmp/success9 \
  -a -f /tmp/success10 ]
then
        echo "11th job goes here"
else
        echo "One or more jobs failed"
fi