snexpire - expire news under the sn system.

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].

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.

SNROOT If this is set and is not empty, the value is used in place of  /var/spool/sn,  the  default  news
              spool directory.

       /var/spool/sn/newsgroup/.expire
              If this exists, its contents are taken to be exp if not overridden by -exp on the command line.

N.B.                                               Harold Tay                                 snexpire,v0.3.8(8)

       /var/spool/sn/newsgroup/.times, /var/spool/sn/newsgroup/[0123456789]*, /var/spool/sn/{.chain,.table}.

       snexpire - expire news under the sn system.

       -v Output a line for each article expired.  The format of this line is the same as for snscan.

snexpire [-v] [-exp] newsgroup [[-exp] newsgroup]...