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UNIX for Dummies Questions & Answers
Regular Expression - Replace if x contains y except if...
Post 302294132 by radoulov on Wednesday 4th of March 2009 02:36:42 PM
03-04-2009
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Is it possible to combine a regular expression with a aritmetical expression? For example, taking a 8-numbers caracter sequece and casting each output of a grep, comparing to a constant.
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hi,
I need to replace all these lines from my text file
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324end
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Hi,
How can I use a regular expression that will find only errors of ORA-00600 that does not contain 12333 if the first brackets:
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Hi all,
How am I read a file, find the match regular expression and overwrite to the same files.
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\..\ {3\}$
which one of these does this match
rs.ef$tt
abc.ab
abc.$$$$
abc
I think its the 1st one what do you think?
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There are 2 strings as below.
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LEARN ABOUT OPENSOLARIS
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)