03-16-2005
Quote:
Originally Posted by izy100
Yeah right.
I am usually right.
4 More Discussions You Might Find Interesting
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How can i write a shell script to display only the dates and times listed when i type ls -l --full-time. i have something, but it tells me there is an illegal variable name. here's what i have:
#! /bin/tcsh
set a = `ls -l --full-time`
set b = `ls -l --full-time | wc -l`
while($b > 0)
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Retro Games has announced that the C64 is back, this time full-sized with a working keyboard for the dedicated retro home-computer fan, available December 2019.
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The C64 | Trailer
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LEARN ABOUT OSF1
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)