Voir la source de Yunohost: Exécution automatique d'un script avec crontab

=Le script sh qui sera relancé toutes les heures=
autorestart.sh
<syntaxhighlight lang="sh">
#!/bin/bash


# relance de meteo_download si ne tourne pas
running=$(ps -f -C python3|grep 'meteo_download.py'|wc -l)
echo "running = $running"
if [ $running -eq 1  ] ; then
    echo "`date` => meteo_download.py is running"
else
    if [ $running -eq 0 ] ; then
        echo "restarting meteo_download.py"
        cd meteo_download && python3 meteo_download.py
    fi
fi
</syntaxhighlight>
Le fichier est dans le home de le_user

=La relance toutes les heures=
Se connecter avec le_user

Edition du crontab avec la commande
<syntaxhighlight lang="sh">
crontab -l
</syntaxhighlight>

<syntaxhighlight lang="sh">
# 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

1 */1 * * * sh ./autorestart.sh > /tmp/autorestart.log
</syntaxhighlight>

La dernière ligne exécute le script autorestart.sh toutes les heures

[[Catégorie:Yunohost]]