Je voulais que Crontab arrête le système quotidiennement mais il ne l'a pas fait, ai-je mal écrit quelque chose ? Voici mon fichier Crontab :
/etc/crontab: system-wide crontab
Unlike any other crontab you don't have to run the `crontab'
command to install the new version when you edit this file
and files in /etc/cron.d. These files also have username fields,
that none of the other crontabs do.
SHELL=/bin/sh
PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
m h dom mon dow user command
17 * * * * root cd / && run-parts --report /etc/cron.hourly
25 6 * * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily )
47 6 * * 7 root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.weekly )
52 6 1 * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.monthly )Fermeture tous les jours à 02h30
30 0 2 * * * /sbin/shutdown -h nowC'est bon mais je suis un peu nouveau sur Ubuntu, donc j'ouvre Crontab -e dans le Terminal et ça ressemble à ça :
# Edit this file to introduce tasks to be run by cron.
# Each task to run has to be defined through a single line indicating with
# different fields when the task will be run and what command to run for the
# task. To define the time you can provide concrete values for minute (m),
# hour (h), day of month (dom), month (mon), and day of week (dow) or use
# '*' in these fields (for 'any').
# Notice that tasks will be started based on the cron's system daemon's
# notion of time and timezones. Output of the crontab jobs (including
# errors) is sent through email to the user the crontab file belongs to
# (unless redirected).
# For example, you can run a backup of all your user accounts at 5 a.m
# every week with:
# 0 5 * * 1 tar -zcf /var/backups/home.tgz /home/
# For more information see the manual pages of crontab(5) and cron(8)
# m h dom mon dow command
30 02 * /sbin/shutdown -h nowDonc je dois taper ma commande à la fin ou comment ? et comment le sauvegarder car je suis confus.
