schedule_job

ScheduleJob

schedule is a frontend around crontab to add/remove cron jobs from user cron tables.

Installation

~ ❯ gem install schedule_job
Fetching schedule_job-1.0.1.gem
Successfully installed schedule_job-1.0.1
Parsing documentation for schedule_job-1.0.1
Installing ri documentation for schedule_job-1.0.1
Done installing documentation for schedule_job after 0 seconds

Usage

Example usage:

~ ❯ schedule --help
Usage: schedule [options] command
    -d, --dryrun                     Report what would happen but do not install the scheduled job.
    -l, --list                       List installed cron jobs.
    -r, --rm JOB_ID                  Remove the specified job id as indicated by --list
    -u, --user USER                  User that the crontab belongs to.
    -e, --every DURATION             Run command every DURATION units of time (valid suffixes are m, h, d, M). DURATION may also be one of the special keywords: reboot, year, month, week, day, hour
        For example:
        --every 10m                       # every 10 minutes
        --every 5h                        # every 5 hours
        --every 2d                        # every 2 days
        --every 3M                        # every 3 months

        Special durations:
        --every reboot                    # after every reboot
        --every year                      # every year
        --every month                     # every month
        --every week                      # every week
        --every day                       # every day
        --every hour                      # every hour

    -c, --cron CRON                  Run command on the given cron schedule.
        For example:
        --cron "*/5 15 * * 1-5"          # Every 5 minutes, at 3:00 PM, Monday through Friday
        --cron "0 0/30 8-9 5,20 * ?"     # Every 30 minutes, between 8:00 AM and 9:59 AM, on day 5 and 20 of the month

~ ❯ schedule -l
~ ❯ schedule -d -e 10m backup.sh
Scheduling: backup.sh Every 10 minutes
Next three runs:
1. 2021-11-01 21:50:00 -0500
2. 2021-11-01 22:00:00 -0500
3. 2021-11-01 22:10:00 -0500
~ ❯ schedule -l
Jobs
1. backup.sh Every 10 minutes
~ ❯ crontab -l
*/10 * * * * backup.sh
~ ❯ schedule -e 3M quarterly_backup.sh
Scheduling: quarterly_backup.sh At 9:50 PM, on day 1 of the month, every 3 months
Next three runs:
1. 2022-01-01 21:50:00 -0600
2. 2022-04-01 21:50:00 -0500
3. 2022-07-01 21:50:00 -0500
~ ❯ schedule -l
Jobs
1. backup.sh Every 10 minutes
2. quarterly_backup.sh At 9:50 PM, on day 1 of the month, every 3 months
~ ❯ crontab -l
*/10 * * * * backup.sh
50 21 1 */3 * quarterly_backup.sh
~ ❯ schedule --dryrun --rm 1
Would remove: backup.sh Every 10 minutes
~ ❯ schedule --dryrun --rm 2
Would remove: quarterly_backup.sh At 9:50 PM, on day 1 of the month, every 3 months
~ ❯ schedule --rm 1
Removing: backup.sh Every 10 minutes
~ ❯ schedule -l
Jobs
1. quarterly_backup.sh At 9:50 PM, on day 1 of the month, every 3 months
~ ❯ schedule --rm 1
Removing: quarterly_backup.sh At 9:50 PM, on day 1 of the month, every 3 months
~ ❯ schedule -l
~ ❯ crontab -l
~ ❯

License

The gem is available as open source under the terms of the MIT License.