05-11-2007
Quote:
Originally Posted by MarGur
Hello friends.
I realize that my question is naive, but I really want to know, why one of my scripts is in white colour (I mean letters in the body are white) while 3 residuary are multicoloured.
Where are the letters white?
What are you looking at? The script? The output of the script?
What does "residuary" mean?
Quote:
I'm asking because I have a little problem with this particular script. It's absolutely the same as its twins from another boxes. Script generates logs from the dataexport and should put the date (s_date=`date +%m-%d-%Y_%I%p`) in the name of log. Somehow it is not accomplished. I wonder, because everything is OK with that script exept the fact that the date is missed. May be there is some connection between those two problems: the body of the script is white and the date is missed.
If there's an error, it's probably on line 42.
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LEARN ABOUT LINUX
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)