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| author | Philip Wittamore <philip@wittamore.com> | 2026-07-12 11:08:50 +0200 |
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| committer | Philip Wittamore <philip@wittamore.com> | 2026-07-12 11:08:50 +0200 |
| commit | 420ceb49b53a8fa9d8ba8443e42e50cd7bd7cea9 (patch) | |
| tree | 3009f0564d75e3f7d1ca38507e7ebb92deaded07 /articles/2025/Anacron-on-Artix.html | |
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diff --git a/articles/2025/Anacron-on-Artix.html b/articles/2025/Anacron-on-Artix.html new file mode 100755 index 0000000..624a53a --- /dev/null +++ b/articles/2025/Anacron-on-Artix.html @@ -0,0 +1,93 @@ +<!doctype html> +<html lang="EN"> + <head> + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width, initial-scale=1"> + <link rel="stylesheet" href="/style.css"> + <title>Anacron on Artix</title> + </head> + <body> + <header> + <h1>Bloggings</h1> + <a href="/index.php">Back</a> + + </header> + +<main> +<article> +<h2>Anacron on Artix</h2> +<h3>2025-06-16</h3> +<h4>On Arch Anacron is a systemd process</h4> +<p>Anacron ensures cron scripts are run on machines that are frequently powered off</p> +<p>On Artix it can be run via cron (cronie)</p> + +<h3>The /etc/crontab file</h3> + +<code># /etc/crontab: configuration file for cron +# See cron(8) and crontab(5) for details. +# m h dom mon dow user command + +SHELL=/bin/bash +PATH=/sbin:/bin:/usr/sbin:/usr/bin +MAILTO=root +HOME=/ + +# run-parts +# (also runs the 0anacron script every hour) +12 * * * * root run-parts /etc/cron.hourly +22 10 * * * root run-parts /etc/cron.daily +32 10 * * 0 root run-parts /etc/cron.weekly +42 10 1 * * root run-parts /etc/cron.monthly +</code> + +<h3>The /etc/cron.hourly/0anacron script</h3> + +<code>#!/bin/sh +# Check whether 0anacron was run today already +if test -r /var/spool/anacron/cron.daily; then +day=`cat /var/spool/anacron/cron.daily` +fi +if [ `date +%Y%m%d` = "$day" ]; then +exit 0; +fi + +# Do not run jobs when on battery power +if test -x /usr/bin/on_ac_power; then +/usr/bin/on_ac_power >/dev/null 2>&1 +if test $? -eq 1; then +exit 0 +fi +fi +/usr/sbin/anacron -s +</code> + +<h3>The /etc/anacrontab file</h3> + +<code># /etc/anacrontab: configuration file for anacron + +# See anacron(8) and anacrontab(5) for details. + +SHELL=/bin/sh +PATH=/sbin:/bin:/usr/sbin:/usr/bin +MAILTO=root +# the maximal random delay added to the base delay of the jobs +RANDOM_DELAY=45 +# the jobs will be started during the following hours only +START_HOURS_RANGE=3-22 + +#period in days delay in minutes job-identifier command +1 5 cron.daily nice run-parts /etc/cron.daily +7 25 cron.weekly nice run-parts /etc/cron.weekly +@monthly 45 cron.monthly nice run-parts /etc/cron.monthly +</code> + + </article> +</main> +<footer> + + <p> </p> + + <p>ยง</p> + </footer> +</body> +</html> |