Not able to pass string with spaces in shell Post: 302406415

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LEARN ABOUT OSF1

ppmquantall

ppmquantall(1)						      General Commands Manual						    ppmquantall(1)

NAME

       ppmquantall - run ppmquant on a bunch of files all at once, so they share a common colormap

SYNOPSIS

       ppmquantall [-ext extension] ncolors ppmfile ...

DESCRIPTION

       Takes a bunch of portable pixmap as input.  Chooses ncolors colors to best represent all of the images, maps the existing colors to the new
       ones, and overwrites the input files with the new quantized versions.

       If you don't want to overwrite your input files, use the -ext option.  The output files are then named the same as the input files, plus  a
       period and the extension text you specify.

       Verbose	explanation:  Let's  say  you've got a dozen pixmaps that you want to display on the screen all at the same time.  Your screen can
       only display 256 different colors, but the pixmaps have a total of a thousand or so different colors.  For a single pixmap you  solve  this
       problem	with  ppmquant;  this  script  solves  it for multiple pixmaps.  All it does is concatenate them together into one big pixmap, run
       ppmquant on that, and then split it up into little pixmaps again.

       (Note that another way to solve this problem is to pre-select a set of colors and then use ppmquant's -map option  to  separately  quantize
       each pixmap to that set.)

SEE ALSO

       ppmquant(1), ppm(5)

AUTHOR

       Copyright (C) 1991 by Jef Poskanzer.

								   27 July 1990 						    ppmquantall(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Strip leading and trailing spaces only in a shell variable with embedded spaces

Discussion started by: jerardfjay

2. UNIX for Advanced & Expert Users

Please Help!! Reading a string of text with concurrent spaces into a shell variable

Discussion started by: mjs3221

3. Shell Programming and Scripting

how can i pass parameter with spaces to csh script

Discussion started by: umen

4. UNIX for Dummies Questions & Answers

Read a string with leading spaces and find the length of the string

Discussion started by: dayamatrix