03-31-2010
Thanks a lot both of you !
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1. Shell Programming and Scripting
if u have a data
2 4 6 8 5 4 4 5 6
then result shud be like
2
4
6
7
5
4
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5
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2. UNIX for Dummies Questions & Answers
I have a program which gives me the output as a single column with hundreds of rows like:
213
314
324
324
123
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3. Shell Programming and Scripting
Hi I have the text file like this
"A"
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"AA Text"
"AAA"
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Like about 2000 lines
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4. Shell Programming and Scripting
Hello All,
Please help me with this file.
My input file (Tab separated) is like:
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Hi Experts,
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For e.g.
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Convert Single column to multiple rows
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Sessions=16
Time=380
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Hi,
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inputfile
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Header Section
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Hi,
I have a requirement to format the data in a new order. Here is my source format :
ppp ***Wed Dec 16 10:32:30 GMT 2015
header1 header2 header3 header4 header5
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Hi Team
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LEARN ABOUT XFREE86
pbmreduce
pbmreduce(1) General Commands Manual pbmreduce(1)
NAME
pbmreduce - read a portable bitmap and reduce it N times
SYNOPSIS
pbmreduce [-floyd|-fs|-threshold ] [-value val] N [pbmfile]
DESCRIPTION
Reads a portable bitmap as input. Reduces it by a factor of N, and produces a portable bitmap as output.
pbmreduce duplicates a lot of the functionality of pgmtopbm; you could do something like pnmscale | pgmtopbm, but pbmreduce is a lot
faster.
pbmreduce can be used to "re-halftone" an image. Let's say you have a scanner that only produces black&white, not grayscale, and it does a
terrible job of halftoning (most b&w scanners fit this description). One way to fix the halftoning is to scan at the highest possible res-
olution, say 300 dpi, and then reduce by a factor of three or so using pbmreduce. You can even correct the brightness of an image, by
using the -value flag.
OPTIONS
By default, the halftoning after the reduction is done via boustrophedonic Floyd-Steinberg error diffusion; however, the -threshold flag
can be used to specify simple thresholding. This gives better results when reducing line drawings.
The -value flag alters the thresholding value for all quantizations. It should be a real number between 0 and 1. Above 0.5 means darker
images; below 0.5 means lighter.
All flags can be abbreviated to their shortest unique prefix.
SEE ALSO
pnmenlarge(1), pnmscale(1), pgmtopbm(1), pbm(5)
AUTHOR
Copyright (C) 1988 by Jef Poskanzer.
02 August 1989 pbmreduce(1)