MULTIOP_PID_FILE=${MULTIOP_PID_FILE:-$TMP/multiop_bg.pid}
rm -f $MULTIOP_PID_FILE
-pid=$(multiop_bg_pause $* | tail -1)
-rc=${PIPESTATUS[0]}
-
-[ "$rc" = 0 ] && echo $pid > $MULTIOP_PID_FILE
+multiop_bg_pause $*
+rc=$?
+[ "$rc" = 0 ] && echo $! > $MULTIOP_PID_FILE
exit $rc