08-17-2016
the command searches for a pattern, and grabs a specific number of lines that come before AND after the pattern is found.
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1. Shell Programming and Scripting
How i can combine output of two commands in one file.......i tried this but it is not working although each command is working good seperately.....
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2. UNIX for Dummies Questions & Answers
Hi,
i tried to combine grep with find and it didnt work
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4. Shell Programming and Scripting
sed -e :a -e 's/<*>//g;/</N;//ba' a2.html -removes html tags
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5. Shell Programming and Scripting
Dear friends,
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6. Shell Programming and Scripting
Hi Team,
I am getting input like below
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What is the correct syntax to pipe or run three awk commands? Basically, using the output of the first awk as input in the second. Then using the output of the second awk in the third. Thank you :).
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Hi,
Can someone please guide me how to combine the following two awk calls in one?
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Hello,
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LEARN ABOUT DEBIAN
ppmtosixel
ppmtosixel(1) General Commands Manual ppmtosixel(1)
NAME
ppmtosixel - convert a portable pixmap into DEC sixel format
SYNOPSIS
ppmtosixel [-raw] [-margin] [ppmfile]
DESCRIPTION
Reads a portable pixmap as input. Produces sixel commands (SIX) as output. The output is formatted for color printing, e.g. for a DEC
LJ250 color inkjet printer.
If RGB values from the PPM file do not have maxval=100, the RGB values are rescaled. A printer control header and a color assignment table
begin the SIX file. Image data is written in a compressed format by default. A printer control footer ends the image file.
OPTIONS
-raw If specified, each pixel will be explicitly described in the image file. If -raw is not specified, output will default to com-
pressed format in which identical adjacent pixels are replaced by "repeat pixel" commands. A raw file is often an order of magni-
tude larger than a compressed file and prints much slower.
-margin
If -margin is not specified, the image will be start at the left margin (of the window, paper, or whatever). If -margin is speci-
fied, a 1.5 inch left margin will offset the image.
PRINTING
Generally, sixel files must reach the printer unfiltered. Use the lpr -x option or cat filename > /dev/tty0?.
BUGS
Upon rescaling, truncation of the least significant bits of RGB values may result in poor color conversion. If the original PPM maxval was
greater than 100, rescaling also reduces the image depth. While the actual RGB values from the ppm file are more or less retained, the
color palette of the LJ250 may not match the colors on your screen. This seems to be a printer limitation.
SEE ALSO
ppm(5)
AUTHOR
Copyright (C) 1991 by Rick Vinci.
26 April 1991 ppmtosixel(1)