Retry or timeout bash function

retry_command_or_timeout.sh

#!/usr/bin/env bash

# Strict Mode - http://redsymbol.net/articles/unofficial-bash-strict-mode/
set -euo pipefail
IFS=$'\n\t'

retry_command_or_timeout() {
  local retry_command=${1}
  local max_retries=${2}
  local sleep_seconds=5
  local retry_counter=0

  echo "Retring: $retry_command"

  until eval "$retry_command" >/dev/null 2>&1 || [ "$retry_counter" -eq "$max_retries" ]; do
    echo "Waiting for $sleep_seconds seconds ..."
    sleep "$sleep_seconds"
    sleep_seconds=$((sleep_seconds * 2))
    retry_counter=$((retry_counter + 1))
  done

  if [ "$max_retries" -eq "$retry_counter" ]; then
    echo "Timeout reached."
    exit 1
  else
    echo "Command completed successfuly."
  fi
}


retry_command_or_timeout  "ping -c 3 google.com" 3
retry_command_or_timeout "ping -c 3 test.com|grep something" 3