NAME

       pamsplit - split a multi-image Netpbm file into single-image files

SYNOPSIS

       pamsplit

       [netpbmfile

       [ output_file_pattern]]

       [-padname=n]

       Minimum unique abbreviation of option is acceptable.  You may use double hyphens instead of single hyphen
       to  denote  options.  You may use white space in place of the equals sign to separate an option name from
       its value.

DESCRIPTION

       This program is part of Netpbm(1).

       pamsplit reads a PNM or PAM stream as input.  It copies each image in the input into a separate file,  in
       the same format.

       netpbmfile  is the file name of the input file, or - to indicate Standard Input.  The default is Standard
       Input.

       output_file_pattern tells how to name the output files.  It is the file name of the output  file,  except
       that  the  first  occurrence  of  "%d"  in  it is replaced by the image sequence number in unpadded ASCII
       decimal, with the sequence starting at 0.  If there is no "%d" in the pattern, pamsplit fails.

       The default output file pattern is "image%d".

       The -padname option specifies how many characters you want the image sequence number in the  output  file
       name padded with zeroes.  pamsplit adds leading zeroes to the image sequence number to get up to at least
       that  number  of  characters.   This  is just the number of characters in the sequence number part of the
       name.   For  example,   pamsplit   -   outputfile%d.ppm   -padname=3   would   yield   output   filenames
       outputfile000.ppm, outputfile001.ppm, etc.

       Note  that  to  do the reverse operation (combining multiple single-image Netpbm files into a multi-image
       one), there is no special Netpbm program.  Just use cat.

       If you just want to find out basic information about the images in a stream, you can use pamfile  on  the
       stream.

       To extract images from a stream and generate a single stream containing them, use pampick.

       To run a program on each image in a stream without the hassle of temporary files, use pamexec.

OPTIONS

       In  addition  to  the options common to all programs based on libnetpbm (most notably -quiet, see  Common
       Options ), pamsplit recognizes the following command line option:

       -padname=n
              Specify the width (i.e. number of digits) of the image sequence number field in the  filenames  of
              the  output  files.   The  image sequence will be padded with leading zeroes to achieve the stated
              width.

              The default is no padding (equivalent to -padname=0).

              The -padname option was new in Netpbm 10.23  (July  2004).   Before  that,  there  was  never  any
              padding.

SEE ALSO

       pamfile(1), pampick(1), pamexec(1), pnm(1), pam(1), cat man page

DOCUMENT SOURCE

       This  manual  page was generated by the Netpbm tool 'makeman' from HTML source.  The master documentation
       is at

              http://netpbm.sourceforge.net/doc/pamsplit.html

netpbm documentation                             11 August 2011                          Pamsplit User Manual(1)