gistfile1.sh

# See "man 5 crontab"
#
# Instead of the first five fields, one of eight special strings may appear:
#       string         meaning
#       ------         -------
#       @reboot        Run once, at startup.
#       @yearly        Run once a year, "0 0 1 1 *".
#       @annually      (same as @yearly)
#       @monthly       Run once a month, "0 0 1 * *".
#       @weekly        Run once a week, "0 0 * * 0".
#       @daily         Run once a day, "0 0 * * *".
#       @midnight      (same as @daily)
#       @hourly        Run once an hour, "0 * * * *".
#
#
# For the first five fields, the alues are space-or-tab-separated and can be:
#                     11                fixed val
#                     11,22,33          list of vals
#                     */5               step 5, repeat at every 5
#                     4-7               range, like 4,5,6,7
#
#
# +------------- min (0 - 59)
# |     +----------- hour (0 - 23)
# |     |     +--------- day of month (1 - 31)
# |     |     |       +------- month (1 - 12)
# |     |     |       |       +----- day of week (0 - 6) (Sunday=0)
# |     |     |       |       |
# *     *     *       *       *        command [... >> stdout_and_stderr.txt 2>&1 ]
  */15  2-4   9,10    *       *         du /tmp >> stdout_and_stderr.txt 2>&1