snexpire - expire news under the sn system.
snexpire [-v] [-exp] newsgroup [[-exp] newsgroup]...
snexpire expires news in the sn news system, one article file (=10
articles, compile time default) at a time. snexpire always leaves
behind at least one article file, so that newly entered articles will
have numbers not overlapping previously used numbers. As an exception
if the expiration age is set to 0, then even this last file will be
expired and subsequent article numbers will start from the beginning.
You will need to be root or own /var/spool/sn to run snexpire.
-v Output a line for each article expired. The format of this line
is the same as for snscan.
snexpire expires all newsgroups named on the command line. Each
newsgroup may be preceded by -exp to control the expiration age. exp
is of the form #[hdwmy] where # is a number, followed by one of the
characters h,d,w,m,y representing hours, days, weeks, months and years.
The default for -exp is a compile-time fixed. Each [-exp] applies to
the next newsgroup only, any newsgroups after that one get default
treatment unless overridden by another [-exp].
SNROOT If this is set and is not empty, the value is used in place of
/var/spool/sn, the default news spool directory.
If this exists, its contents are taken to be exp if not
overridden by -exp on the command line.