wait-logstop.sh

#!/bin/sh -eu

timeout=30
since=15

function usage() {
  cat >&2<<EOT
Usage: $(basename $0) [-s since] [-t timeout] PATH...

EOT
}

# parse options http://qiita.com/b4b4r07/items/dcd6be0bb9c9185475bb
for OPT in "$@"
do
  case "$OPT" in
    '-h'|'--help')
      usage
      exit 1
      ;;
    '-s')
      [ -z "$2" ] && { usage; exit 10; }
      since=$2
      shift 2
      ;;
    '-t')
      [ -z "$2" ] && { usage; exit 10; }
      timeout=$2
      shift 2
      ;;
  esac
done

[ $# -eq 0 ] && { usage; exit 11; }
since=$(echo "scale=2; $since / 60" | bc)

echo -n "waiting for $1 stops"
for (( i = 0; i < $timeout; i++ )); do
  echo -n "."
  [ $(find $@ -mmin -$since | wc -l) -eq 0 ] && echo stopped && exit
  sleep 1
done
echo timeout!!
exit 1