systemd Documentation Brandon Philips brandon@ifup.org tmpfiles.d 5 tmpfiles.d configuration for creation, deletion and cleaning of tmpfiles 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 The configuration format is one line per path containing action, mode, ownership and age fields: type path mode uid gid age d /var/run/user 0755 root root 10d f create a file F truncate a file d create a directory D truncate a directory x ignore the path r remove the path R recursively remove the path 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 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 systemd1