g3cat(1)                     mgetty+sendfax manual                    g3cat(1)


       g3cat - concatenate multiple g3 documents


       g3cat [-l] [-a] g3-file1 ...


       g3cat  concatenates  g3  files.  These  can  either  be ’raw’, that is,
       bitmaps packed according to the CCITT T.4 standard for  one-dimensional
       bitmap encoding, or ’digifax’ files, created by GNU’s GhostScript pack-
       age with the digifax drivers. Its output is a concatenation of all  the
       input files, in raw G3 format, with two white lines in between.

       If a - is given as input file, stdin is used.

       If the input data is malformed, a warning is printed to stderr, and the
       output file will have a blank line at this place.


       -l     separate files with a one-pixel wide black line.

       -h <blank lines>
              specifies the number of blank lines g3cat should prepend to each
              page. Default is 0.

       -L <lines>
              limit lenght of output page to maximum <lines> lines.


       -w <width>
              specifies  the desired page width in pixels per line. Default is
              1728 PELs, and this is mandatory if you want to send the fax  to
              a standard fax machine.  If one of the input files doesn’t match
              this line width (for example because it was created by a  broken
              G3  creator), a warning is printed, and the line width is trans-
              parently fixed.

       -a     byte-align the end-of-line codes (EOL) in the  file.  Every  EOL
              will end at a byte boundary, that is, with a  01 byte.

       -p <pad>
              specifies  a  minimum number of bytes that each output line must
              be padded to.  Padding is done with 0-bits before the EOL  code.

       -R     suppress output of end-of-page code (RTC).


       The  following  example  will  put  a  header  line on a given g3 page,
       ’page1’ and put the result into ’page2’:

       echo ’$header’ | pbmtext | pbm2g3 | g3cat - page1 >page2




       Hopefully none :-).


       g32pbm(1), sendfax(8), faxspool(1)


       g3cat is Copyright (C) 1993 by Gert Doering, <gert@greenie.muc.de>

greenie                            27 Oct 93                          g3cat(1)

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