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Full Discussion: Rewriting standard output lines
Top Forums Shell Programming and Scripting Rewriting standard output lines Post 302241160 by neked on Sunday 28th of September 2008 03:08:14 PM
Old 09-28-2008
Hello Again Smilie

Quote:
Originally Posted by Lakris
And when it comes to a terminal/tty, moving the cursor to where You want it is not hackish! It's how You do it, at least thats the way I see it Smilie
But you're not simply moving the cursor, you're also erasing characters, thats why I thought its "hackish"..

Quote:
Originally Posted by Lakris
The are tools/libs such as ncurses that are made for easy manipulation of text screens. One just has to decide how much one need it and which is the path of least resistance.
/Lakris
Fair enough, maybe I'm asking too much from a pure bash script.. Thanks for replying!
 

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LEARN ABOUT REDHAT

ppmtopgm

ppmtopgm(1)						      General Commands Manual						       ppmtopgm(1)

NAME

       ppmtopgm - convert a portable pixmap into a portable graymap

SYNOPSIS

       ppmtopgm [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as  input.  Produces a portable graymap as output.  The output is a "black and white" rendering of the original
       image, as in a black and white photograph.  The quantization formula used is .299 r + .587 g + .114 b.

       Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any  ppm  program  can
       read  pgm  (and	pbm  ) files automatically.  pgmtoppm is for colorizing a pgm file.  Also, see ppmtorgb3 for a different way of converting
       color to gray.  And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate  the  original
       colors, not necessarily a way that looks like a black and white photograph.

QUOTE

       Cold-hearted orb that rules the night
       Removes the colors from our sight
       Red is gray, and yellow white
       But we decide which is right
       And which is a quantization error.

SEE ALSO

       pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5)

AUTHOR

       Copyright (C) 1989 by Jef Poskanzer.

								   10 April 2000						       ppmtopgm(1)
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