12-31-2005
script - replace text in file
I have a file something like this (except much larger amount of rows/data)
0001 blue testing1
0002 blue testing2
0006 blue testing3
0232 red testing4
2143 blue testing5
3453 blue testing6
In a script I want to replace the word red with blue where the line begins with a certain number - ie. in this case I want to replace the word red with blue where the line begins with 0232.
I also want to place a new line in this file after the one in which I replace red with blue... I want to add a line to state I replace the word red with the word blue... so final file would look like this:
0001 blue testing1
0002 blue testing2
0006 blue testing3
0232 blue testing4
info: I replaced red with blue in the above line
2143 blue testing5
3453 blue testing6
any ideas?
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LEARN ABOUT LINUX
ppmdither
ppmdither(1) General Commands Manual ppmdither(1)
NAME
ppmdither - ordered dither for color images
SYNOPSIS
ppmdither [-dim power] [-red shades] [-green shades] [-blue shades] [ppmfile]
DESCRIPTION
Reads a portable pixmap as input, and applies dithering to it to reduce the number of colors used down to the specified number of shades
for each primary. The default number of shades is red=5, green=9, blue=5, for a total of 225 colors. To convert the image to a binary rgb
format suitable for color printers, use -red 2 -green 2 -blue 2.
OPTIONS
-dim power The size of the dithering matrix. The dithering matrix is a square whose dimension is a power of 2. power is that power of
2. The default is 4, for a 16 by 16 matrix.
-red shades The number of red shades to be used, including black; minimum of 2.
-green shades The number of green shades to be used, including black; minimum of 2.
-blue shades The number of blue shades to be used, including black; minimum of 2.
SEE ALSO
pnmdepth(1), ppmquant(1), ppm(5)
AUTHOR
Copyright (C) 1991 by Christos Zoulas.
14 July 1991 ppmdither(1)