bashでリトライ処理(だんだんsleep時間を増やす)

#!/bin/bash

retry_count=5
retry_interval_seconds=10

count=1
while :
do
  command
  status=$?
  if [ ${status} -eq 0 ]; then
    exit 0
  fi
  if [ ${count} -eq ${retry_count} ]; then
    break
  fi
  sleep_seconds=$((count * retry_interval_seconds))
  count=$((count + 1))
  echo Retry after ${sleep_seconds} seconds, next count is ${count}
  sleep ${sleep_seconds}
done

echo Retry over
exit 1

厳密なExponential Backoffではない