$Z time of day (hh:mm, can be changed with /SET timestamp_format)
$$ a literal '$'
- $versiontim prints time of the irssi version in HHMM format
+ $versiontime prints time of the irssi version in HHMM format
$sysname system name (eg. Linux)
$sysrelease system release (eg. 2.2.18)
$sysarch system architecture (eg. i686)