script/runner and crontab

crontab

MAILTO=me@example.com
TIPS_ROOT=/home/user_name/projects/project1

# m h  dom mon dow   command
 */1  *   *   *   *    $TIPS_ROOT/script/local_runner.sh script/ping_em_all.rb log/ping.log

local_runner.sh

#!/bin/bash

# Used for running script/runner using cron.
# Changes to app root dir (TIPS_ROOT), before calling script.runner using relative path.
# Params: script log_file
#
# Usage:
# script/local_runner script/script_name log/log_file
#
# h2. To use with cron:
# $ crontab -e
# add entry:
# */20 *   *   *   *    $TIPS_ROOT/script/local_runner.sh script/ping_em_all.rb log/ping.log
#

function display_usage {
  echo "Usage:"
  echo "  script/local_runner.sh relative/path/to/script relative/path/log_file"
  echo "Example:"
  echo "  script/local_runner.sh script/ping_em_all.rb log/ping.log"
}

if [ -z "$TIPS_ROOT" ]; then
    echo "TIPS_ROOT is required"
    exit 1
fi

if [ -z "$1" ]; then
    echo "Script is required:"
    display_usage
    exit 1
fi


if [ -z "$2" ]; then
    echo "log_file is required:"
    display_usage
    exit 1
fi

cd $TIPS_ROOT
/usr/local/bin/ruby script/runner $1 >> $2