# pnmcat(1) - man - phpman

[pnmcat(1)](https://www.chedong.com/phpMan.php/man/pnmcat/1/markdown)                              General Commands Manual                             [pnmcat(1)](https://www.chedong.com/phpMan.php/man/pnmcat/1/markdown)



## NAME
       pnmcat - concatenate portable anymaps

## SYNOPSIS
       **pnmcat** [**-white**|**-black**] **-leftright**|**-lr** [**-jtop**|**-jbottom**] _pnmfile_ _pnmfile_ ...
       **pnmcat** [**-white**|**-black**] **-topbottom**|**-tb** [**-jleft**|**-jright**] _pnmfile_ _pnmfile_ ...


## DESCRIPTION
       Reads  portable  anymaps  as input.  Concatenates them either left to right or top to bottom,
       and produces a portable anymap as output.

       **pamdice** splits an image up into smaller ones.

       **pnmtile** concatenates a single input image to itself repeatedly.


## OPTIONS
       If the anymaps are not all the same height (left-right) or width  (top-bottom),  the  smaller
       ones have to be justified with the largest.  By default, they get centered, but you can spec‐
       ify one side or the other with one of the -j* flags.  So, **-topbottom** **-jleft** would  stack  the
       anymaps on top of each other, flush with the left edge.

       The  **-white**  and **-black** flags specify what color to use to fill in the extra space when doing
       this justification.  If neither is specified, the program makes a guess.

       All flags can be abbreviated to their shortest unique prefix.


## SEE ALSO
       [**pamdice**(1)](https://www.chedong.com/phpMan.php/man/pamdice/1/markdown), [**pnmtile**(1)](https://www.chedong.com/phpMan.php/man/pnmtile/1/markdown), [**pamcut**(1)](https://www.chedong.com/phpMan.php/man/pamcut/1/markdown), [**pnm**(5)](https://www.chedong.com/phpMan.php/man/pnm/5/markdown)


## AUTHOR
       Copyright (C) 1989 by Jef Poskanzer.



                                            12 March 1989                                  [pnmcat(1)](https://www.chedong.com/phpMan.php/man/pnmcat/1/markdown)