tarsnap.crontab.sample

# this is set for backups at an arbitary 1:01am. 

# monthly - every 1st 
1 1 1 * *  /usr/local/bin/tarsnap-archive.sh monthly

# weekly - every Monday, not on 1st
1 1 * * *  test $(date +\%u) -eq 1 && test $(date +\%e) -ne 01 && /usr/local/bin/tarsnap-archive.sh weekly

# daily - every day, except on 1st, or on Monday
1 1 * * *  test $(date +\%u) -ne 1 && test $(date +\%e) -ne 01 && /usr/local/bin/tarsnap-archive.sh daily

# hourly - 1 minute after the hour, except 1:01. 
# 1 0,2-23 * * * /usr/local/bin/tarsnap-archive.sh hourly

* * * * * 
| | | | | 
| | | | +---- Day of the Week   (range: 1-7) - date +%u, 1 standing for Monday
| | | +------ Month of the Year (range: 1-12)
| | +-------- Day of the Month  (range: 1-31) - date +%e
| +---------- Hour              (range: 0-23)
+------------ Minute            (range: 0-59)