X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=man%2Ftmpfiles.d.xml;h=25a7c9ba48351d96b84388c65de4a16a6eca5449;hp=5ff53ef76645ad31d1dec4ceac0b1623ad80d246;hb=4b9397474f2c80957fd1cedf885061052333fb25;hpb=4149f86d816fc0fef41d35de5beb09bfe81e0d6a diff --git a/man/tmpfiles.d.xml b/man/tmpfiles.d.xml index 5ff53ef76..25a7c9ba4 100644 --- a/man/tmpfiles.d.xml +++ b/man/tmpfiles.d.xml @@ -42,88 +42,234 @@ tmpfiles.d - configuration for creation, deletion and cleaning of tmpfiles + Configuration for creation, deletion and + cleaning of volatile and temporary files + + /usr/lib/tmpfiles.d/*.conf + /etc/tmpfiles.d/*.conf + /run/tmpfiles.d/*.conf + + Description - systemd uses /etc/tmpfiles.d/ to describe the creation, cleaning and removal of temporary files and directories -which usually reside in /var/run or /tmp). -Each configuration file is named in the style of -/etc/tmpfiles.d/<program>.conf - + systemd-tmpfiles uses the + configuration files from the above directories to describe the + creation, cleaning and removal of volatile and + temporary files and directories which usually reside + in directories such as /run + or /tmp. Configuration Format - The configuration format is one line per path containing -action, mode, ownership and age fields: + Each configuration file is named in the style of + <program>.conf. Files in + /etc/ override files with the + same name in /usr/lib/. Files in + /run override files with the same + name in /etc/ and + /usr/lib/. Packages should + install their configuration files in + /usr/lib/, files in + /etc/ are reserved for the local + administrator, who may choose to override the + configurations installed from packages. The list of + configuration files are sorted by their filename in + alphabetical order, regardless in which of the + directories they reside, to guarantee that a + configuration file takes precedence over another + configuration file with an alphabetically later + name. + + The configuration format is one line per path + containing action, path, mode, ownership, age and argument + fields: + + Type Path Mode UID GID Age Argument +d /run/user 0755 root root 10d - +L /tmp/foobar - - - - /dev/null + + + Type + + + f + Create a file if it doesn't exist yet (optionally writing a short string into it, if the argument parameter is passed) + + + + F + Create or truncate a file (optionally writing a short string into it, if the argument parameter is passed) + + + + w + Write the argument parameter to a file, if it exists. + + + + d + Create a directory if it doesn't exist yet + + + + D + Create or empty a directory + + + + p + Create a named pipe (FIFO) if it doesn't exist yet + + + + L + Create a symlink if it doesn't exist yet + + + + c + Create a character device node if it doesn't exist yet + - type path mode uid gid age -d /var/run/user 0755 root root 10d - + + b + Create a block device node if it doesn't exist yet + - - type - - - f - create a file - + + x + Ignore a path + during cleaning. Use this type + to exclude paths from clean-up + as controlled with the Age + parameter. Note that lines of + this type do not influence the + effect of r or R lines. Lines + of this type accept + shell-style globs in place of + of normal path + names. + - - F - truncate a file - + + r + Remove a file + or directory if it + exists. This may not be used + to remove non-empty + directories, use R for + that. Lines of this type + accept shell-style globs in + place of normal path + names. + - + + R + Recursively + remove a path and all its + subdirectories (if it is a + directory). Lines of this type + accept shell-style globs in + place of normal path + names. + + + + z + Set ownership, access + mode and relabel security context of + a file or directory if it exists. + Lines of this type accept shell-style + globs in place of normal path names. + + + + + Z + Recursively set + ownership, access mode and relabel + security context of a path and + all its subdirectories (if it is a + directory). Lines of this type accept + shell-style globs in place of normal + path names. + + + + + + Mode + + The file access mode to use when + creating this file or directory. If omitted or + when set to - the default is used: 0755 for + directories, 0644 for all other file + objects. For z, Z lines if omitted or when set + to - the file access mode will not be + modified. This parameter is ignored for x, r, + R, L lines. + + + + UID, GID + + The user and group to use for this file + or directory. This may either be a numeric + user/group ID or a user or group name. If + omitted or when set to - the default 0 (root) + is used. For z, Z lines when omitted or when set to - + the file ownership will not be modified. + These parameters are ignored for x, r, R, L lines. + + + + Age + The date field, when set, is used to + decide what files to delete when cleaning. If + a file or directory is older than the current + time minus the age field it is deleted. The + field format is a series of integers each + followed by one of the following + postfixes for the respective time units: + + + + s + min + h d - create a directory - - - - D - truncate a directory - - - - x - ignore the path - - - - r - remove the path - - - - R - recursively remove the path - - - - - - age - The date field, when set, is used to decide what files to delete when cleaning. If a file or directory is older than the current time minus the age field it is deleted. The field format is an integer followed by one of the following postfixes: - - sec - s - min - hr - h - d - w - msec - ms - m - usec - us - - + w + ms + m + us + + + If multiple integers and units are specified the time + values are summed up. + + The age field only applies to lines starting with + d, D and x. If omitted or set to - no automatic clean-up + is done. + + + + Argument + For L lines determines the destination + path of the symlink. For c, b determines the + major/minor of the device node, with major and + minor formatted as integers, separated by :, + e.g. "1:3". For f, F, w may be used to specify + a short string that is written to the file, + suffixed by a newline. Ignored for all other + lines. + @@ -133,16 +279,16 @@ d /var/run/user 0755 root root 10d /etc/tmpfiles.d/screen.conf example screen needs two directories created at boot with specific modes and ownership. - d /var/run/screens 1777 root root 10d -d /var/run/uscreens 0755 root root 10d - + d /var/run/screens 1777 root root 10d +d /var/run/uscreens 0755 root root 10d12h See Also - systemd1 + systemd1, + systemd-tmpfiles8