systemd-tmpfiles, systemd-tmpfiles-setup.service, systemd-tmpfiles-setup-dev.service, systemd-tmpfiles-clean.service, systemd-tmpfiles-clean.timer — Creates, deletes and cleans up volatile and temporary files and directories
systemd-tmpfiles [OPTIONS...] [CONFIGFILE...]
systemd-tmpfiles-setup.service
systemd-tmpfiles-setup-dev.service
systemd-tmpfiles-clean.service
systemd-tmpfiles-clean.timer
systemd-tmpfiles creates, deletes, and cleans up volatile and temporary files and directories, based on the configuration file format and location specified in tmpfiles.d(5).
If invoked with no arguments, it applies all directives from all configuration files. If one or more filenames are passed on the command line, only the directives in these files are applied. If only the basename of a configuration file is specified, all configuration directories as specified in tmpfiles.d(5) are searched for a matching file.
The following options are understood:
--create¶If this option is passed, all files and
directories marked with
f,
F,
w,
d,
D,
v,
p,
L,
c,
b,
m
in the configuration files are created or written to. Files
and directories marked with
z,
Z,
t,
T,
a, and
A have their ownership, access mode and
security labels set.
--clean¶If this option is passed, all files and directories with an age parameter configured will be cleaned up.
--remove¶If this option is passed, the contents of
directories marked with D or
R, and files or directories themselves
marked with r or R are
removed.
--boot¶Also execute lines with an exclamation mark.
--prefix=path¶Only apply rules with paths that start with the specified prefix. This option can be specified multiple times.
--exclude-prefix=path¶Ignore rules with paths that start with the specified prefix. This option can be specified multiple times.
--root=root¶Takes a directory path as an argument. All
paths will be prefixed with the given alternate
root path, including config search
paths.
-h, --help¶--version¶It is possible to combine --create,
--clean, and --remove in one
invocation. For example, during boot the following command line is
executed to ensure that all temporary and volatile directories are
removed and created according to the configuration file:
systemd-tmpfiles --remove --create
systemd-tmpfiles tries to avoid changing
the access and modification times on the directories it accesses,
which requires CAP_ADMIN privileges. When
running as non-root, directories which are checked for files to
clean up will have their access time bumped, which might prevent
their cleanup.