Provided by: inn_1.7.2debian-30_i386 bug


       filechan - file-writing backend for InterNetNews


       filechan [ -d directory ] [ -f fields ] [ -m mapfile ] [ -p pidfile ]


       Filechan  reads  lines from standard input and copies certain fields in
       each line into files named by other fields within the  line.   Filechan
       is  intended  to  be called by innd(8) as a channel feed.  (It is not a
       full exploder and does not accept  commands;  see  newsfeeds(5)  for  a
       description of the difference and buffchan(8) for an exploder program.)

       Filechan input is interpreted as a set of lines.  Each line contains  a
       fixed  number  of  initial  fields,  followed  by  a variable number of
       filename fields.  All fields in a line  are  separated  by  whitespace.
       The default number of initial fields is one.

       For  each  line of input, filechan writes the initial fields, separated
       by whitespace and followed by a newline, to each of the files named  in
       the  filename  fields.   When  writing  to a file, filechan opens it in
       append mode and tries to lock it and change the ownership to  the  user
       and group who owns the directory where the file is being written.


       -f     The  ‘‘-f’’  flag  may  be used to specify a different number of

       -d     By default, filechan writes its  arguments  into  the  directory
              /var/spool/news/out.going.   The  ‘‘-d’’  flag  may  be  used to
              specify  a  directory  the  program  should  change  to   before

       -p     If  the  ‘‘-p’’  flag  is  used,  the  program will write a line
              containing its process ID (in text) to the specified file.

       If filechan is invoked with ‘‘-f 2’’ and given the following input:
              news/software/b/132 <> foo uunet
              news/software/b/133 <> uunet munnari
              comp/sources/unix/2002 <> foo uunet munnari

       Then the file foo will have these lines:
              news/software/b/132 <>
              comp/sources/unix/2002 <>

       the file munnari will have these lines:
              news/software/b/133 <>
              comp/sources/unix/2002 <>

       and the file uunet will have these lines:
              news/software/b/132 <>
              news/software/b/133 <>
              comp/sources/unix/2002 <>

       Because the time window  in  which  a  file  is  open  is  very  small,
       complicated  flushing  and  locking  protocols  are not needed; a mv(1)
       followed by a sleep(1) for a couple of seconds is sufficient.

       -m     A map file may be specified by using  the  ‘‘-m’’  flag.   Blank
              lines and lines starting with a number sign (‘‘#’’) are ignored.
              All other lines should have two host names separated by a colon.
              The first field is the name that may appear in the input stream;
              the second field names the file to be used when the name in  the
              first field appears.  For example, the following map file may be
              used to map the short names above to the full domain names:
              # This is a comment


       Written by Robert Elz <>, flags  added  by  Rich  $alz
       <>.  This is revision 1.19, dated 1996/10/29.


       buffchan(8), innd(8), newsfeeds(5).