The following directories, or symbolic links to directories, are
required in /var:
| Directory | Description |
|---|---|
cache | Application cache data |
lib | Variable state information |
local | Variable data for /usr/local |
lock | Lock files |
log | Log files and directories |
opt | Variable data for /opt |
run | Data relevant to running processes |
spool | Application spool data |
tmp | Temporary files preserved between system reboots |
Several directories are `reserved' in the sense that they must not be used arbitrarily by some new application, since they would conflict with historical and/or local practice. They are:
/var/backups /var/cron /var/msgs /var/preserve