Manual: pamsplit

Pamsplit User Manual(1)				   General Commands Manual			     Pamsplit User Manual(1)

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  charac‐
       ters.   This  is just the number of characters in the sequence number part of the name.	For example, pamsplit - out‐
       putfile%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)