03-22-2006
Quote:
Originally Posted by atticus
I want to display the number of empty lines in a file. I guess i should use 'grep'...but how..
10x for those who'll help.
Nah, use awk.
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Hi ,
i'm searching for an easy solution to list a file without empty lines ,
i haven't found with cat and grep !
Anybody has an idea ?
thanks in advance
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Hi,
I need to delete the lines with empty name.
What is the best way to do it?
Thanks a lot for your help!
EMID MMDDYY HOURS JOB EMNAME
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abc#
abc#this is a test
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abc#
xyz#
xyz#this is a test two
xyz#
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abc#this is a test
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xyz#this is a test two
.
.
.
. (5 Replies)
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Hello:
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<code>
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</code>
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Hi - I have req to join broken lines and remove empty lines but should NOT be in one line. It has to be as is line by line. The challenge here is there is no end of line/start of line char.
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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)