NAME

       snsplit - split an article stream into individual articles

SYNOPSIS

       snsplit [-r] [field... -] prog...

DESCRIPTION

       snsplit  reads an article stream from descriptor 0 and splits it into separate articles, invoking prog...
       on each, with the article avaiable on descriptor 0.  This is useful as a quick-and-dirty way of filtering
       an article stream.

       The incoming article stream is expected to be in wire format, with lines ending  in  CRLF,  leading  dots
       doubled, and delimited by a dot on a line by itself.

       The  article presented to prog...  will have lines that end in a bare newline, will have all header lines
       unfolded, leading dots will be unstuffed, and the article will be terminated by end-of-file.

ARGUMENTS

       prog...
              is the program (with arguments) to run on each article.   If  prog...   exits  with  any  kind  of
              failure, snsplit aborts.

       field...-
              are  optional  header field names.  If these are specified, the value of the first header field of
              that name will be exported into the environment.  This field...  list must be  terminated  by  the
              hyphen.  See also ENVIRONMENT below.

OPTIONS

       -r     Expect input articles in rnews batch format instead.

ENVIRONMENT

       snsplit  sets some environment variables.  If the environment already contains these variables, they will
       be overwritten.

       SEQUENCE
              If already set to a positive value, it is incremented for the first article.  If it isn't set,  is
              set  to one for the first article.  Thereafter it is incremented for each subsequent article.  The
              value is always a 6-digit number with leading zeroes, and it can roll over.

       BYTES  contains the size of the current article.

       HEAD_LINES
              The number of lines in the head of the article, excluding the blank separator line.

       BODY_LINES
              The number of lines in the body of the article, excluding the blank separator line.

       FLD_FIELD
              If any fields are specified on the command line, where field is the  name  of  an  article  header
              field, then FLD_FIELD will be set to the value of field, where FIELD is the same as field but with
              lower  case  characters changed to upper case, and all hyphens changed to underscores.  Confusing?
              If field is message-id, then FLD_MESSAGE_ID will be set to the value of the first Message-ID field
              in the current article, if there is one.

EXIT CODES

       snsplit exits 0 on success, 1 on usage error, 2 on system error, and  3  on  article  format  error.   If
       prog...  exits with other than 0, snsplit will also exit that value.

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