#!/bin/sh NUM="$1" GAP="$2" DUR="$3" [ -z "$NUM" ] && NUM=30 [ -z "$GAP" ] && GAP=5 [ -z "$DUR" ] && DUR=30 for n in `seq 1 $NUM`; do echo "Starting $n of $NUM ..." ceph_smalliobenchrbd --pool rbd --duration $DUR --disable-detailed-ops 1 & sleep $GAP done echo "Waiting..." wait echo "OK"