Check whether linux is utilizing service or systemctl with a shell script

Question

friends!

I need a mechanism to verify if the linux virtual private server is utilizing systemctl or service.

The systemd application is installed on all of them.

if pgrep systemd-journal; then
    systemctl restart unbound
else
    service unbound restart
fi

Just need a stable way to check either the system is using service or systemctl. — wikob41409, Feb 06 '22 at 10:28
service works anyways here on systemd'ed Fedora 35. file which service /usr/sbin/service: Bourne-Again shell script, ASCII text executable — Artem S. Tashkinov, Feb 06 '22 at 19:29
Why do you need to know? When systemctl is available, all services can be controlled with it. It does not make sense to use an older compatibility mechanism when establishing new services. — U. Windl, Feb 08 '22 at 13:54

score 0 · Answer 1 · answered Feb 06 '22 at 11:01

0

ps --no-headers -o comm 1

This returns either systemd or init and appears reliable across Linux distributions and releases.

answered Feb 06 '22 at 11:01

wikob41409

1 Answers1