Leo at 21:06, 17 April 2023

2023-04-17T21:06:46Z

← Older revision		Revision as of 21:06, 17 April 2023
Line 1:		Line 1:
	systemd-tmpfiles is a systemd subsystem that creates, deletes, and cleans up temporary files and directories on a system. Its main functions are:		systemd-tmpfiles is a systemd subsystem that creates, deletes, and cleans up temporary files and directories on a system. Its main functions are:

	# Create system directories such as /proc, /sys, /var, /tmp, etc.		# Create system directories such as <code>/proc</code>, <code>/sys</code>, <code>/var</code>, <code>/tmp</code>, etc.
	# Cleanup operations on specific directories such as in /tmp and /var/tmp.		# Cleanup operations on specific directories such as in <code>/tmp</code> and <code>/var/tmp</code>.
			Directory cleanups are done using a <code>systemd-tmpfiles-clean</code> timer and service. On Red Hat based systems, the cleanup timer runs once 15 minutes after startup and also once a day.

	== Configuration ==		== Configuration ==

Leo: Created page with "systemd-tmpfiles is a systemd subsystem that creates, deletes, and cleans up temporary files and directories on a system. Its main functions are: # Create system directories such as /proc, /sys, /var, /tmp, etc. # Cleanup operations on specific directories such as in /tmp and /var/tmp. == Configuration == To see the current configs, run: `systemd-tmpfiles --cat-config`. Configuration files are located in the following directories: * Default system config fi..."

2023-04-17T20:46:39Z

Created page with "systemd-tmpfiles is a systemd subsystem that creates, deletes, and cleans up temporary files and directories on a system. Its main functions are: # Create system directories such as /proc, /sys, /var, /tmp, etc. # Cleanup operations on specific directories such as in /tmp and /var/tmp. == Configuration == To see the current configs, run: <code>systemd-tmpfiles --cat-config</code>. Configuration files are located in the following directories: * Default system config fi..."

New page

systemd-tmpfiles is a systemd subsystem that creates, deletes, and cleans up temporary files and directories on a system. Its main functions are:

# Create system directories such as /proc, /sys, /var, /tmp, etc.
# Cleanup operations on specific directories such as in /tmp and /var/tmp.

== Configuration ==
To see the current configs, run: <code>systemd-tmpfiles --cat-config</code>. Configuration files are located in the following directories:

* Default system config files are located in <code>/usr/lib/tmpfiles.d</code>.
* Alternatively: <code>/run/tmpfiles.d/*.conf</code>
* Custom configs can be placed in <code>/etc/tmpfiles.d</code>. Overrides files with the same names in the other locations listed above.

=== Custom config ===
See the tmpfiles.d man page for a comprehensive overview. I will go over some important bits below.

To add your own configuration, place a file with a <code>.conf</code> file extention in <code>/etc/tmpfiles.d/</code>. Each line should contain a single directive for a single path. For example:
{{Highlight
| code = #Type Path Mode UID GID Age Argument
d /run/user 0755 root root 10d -
L /tmp/foobar - - - - /dev/null
| lang = text
}}
Types that you may frequently use are listed below:
{| class="wikitable"
!Type
!Description
|-
|<code>f</code>
|Create a file if it doesn't exist
|-
|<code>F</code>
|Create a file or truncate it if it exists
|-
|<code>d</code>
|Create a directory
|-
|<code>c</code>
|Create a character device node
|-
|<code>r</code>
|Removes a file or directory if it exists. Does not follow symlinks. Use 'R' for recursive removes.
|-
|<code>x</code>
|Exclude a path during a clean operation
|-
|<code>X</code>
|Exclude a path (to a directory) during a clean operation
|-
|<code>Q</code>
|Creates a subvolume (or directory if the underlying filesystem doesn't support volumes)
|-
|<code>L</code>
|Creates a symlink
|-
|<code>!</code>
|Exclamation mark '!' denotes that the rule should only execute on system startup.
|}
If an age is specified, automatic cleanup of files older than the specified age will be done. Files older than the specified age will be deleted.

Systemd-tmpfiles - Revision history

Leo at 21:06, 17 April 2023