tests/jobs3.sub

   1 #! /bin/bash
   2 NJOB=8
   3 i=0
   4
   5 while [ $i -lt $NJOB ]
   6 do
   7     /bin/sh -c "sleep 4; exit 0" &
   8     rv=$?
   9     pid=$!
  10     eval bg_pid_$i=$pid
  11 #    echo $$: Job $i: pid is $pid rv=$rv
  12     i=$((i + 1))
  13 done
  14
  15
  16
  17 i=0
  18 while [ $i -lt $NJOB ]
  19 do
  20     eval wpid=\$bg_pid_$i
  21     echo Waiting for job $i #'('pid $wpid')'
  22     wait $wpid
  23     rv=$?
  24     echo job $i returns $rv
  25     i=$((i + 1))
  26 done