Linux Services
2023-09-04.
Category & Tags:
Linux Services,
Nix Services
Folders #
| Folder | Description |
|---|---|
/etc/systemd/system/ |
[suggested] for admin/root user (local config) |
/usr/lib/systemd/(system/) |
for repo installed packages (using e.g. RPM) |
/lib/systemd/(system/) |
(/lib is a symlink to /usr/lib) |
/run/systemd/system |
runtime units |
Note: “runtime units”: the ability to make modifications to a process (unit) during the current boot without that change/modification persisting across a reboot.
Tip: check which package a file belongs to:
- for RPM (Cent/Fedora/RHEL):
rpm -qf /usr/lib/systemd/system/* |sort -u | head - for Debian/Ubuntu:
dpkg -S /lib/systemd/system/* |sort -u | head-S==--search- This command will not list extra files created by maintainer scripts, nor will it list alternatives.
- or:
dpkg-query -S ...
Ref’s: man systemd.unit, man 7 file-hierarchy, stackoverflow.
Filenames #
<unit>[@<instance>].<type>
[email protected]
[email protected]
[email protected]
ref: https://unix.stackexchange.com/questions/588629/why-do-some-unit-filenames-end-with
Content #
[Unit]
Description=some description %i.
After=network.target
[Service]
Type=simple
User=%i
Restart=on-abort
ExecStart=/abs/path/to/executable/binary/or/script.sh
[Install]
WantedBy=multi-user.target
Commands #
systemctl daemon-reload
systemctl start clash
systemctl enable clash@$USER
