04-04-2013
Please give us a representative sample of your input, show us how to choose the lines you want to extract, and explain the transpositions that you want to appear in your output file(s).
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Hi, All
I have a huge file which has 450G. Its tab-delimited format is as below
x1 A 50020 1
x1 B 50021 8
x1 C 50022 9
x1 A 50023 10
x2 D 50024 5
x2 C 50025 7
x2 F 50026 8
x2 N 50027 1
:
:
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Each line of the file has some words exactly same letters as of the first one. But has zero or more "_+" inserted. I am interested in those words and remove the other cases.
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I do have a large matrix of the following format and it is tab delimited
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In-order to check and print if file2 is a subset of file one i do the below.
var1=$(cat //tmp/file1 | sort -u | wc)
var2=$(cat /tmp/file2 /tmp/file1 | sort -u | wc)
if ; then
echo "file2 is a subset of file1 becoz var1 and var2 have the same values."
fi
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LEARN ABOUT MINIX
psidtopgm
psidtopgm(1) General Commands Manual psidtopgm(1)
NAME
psidtopgm - convert PostScript "image" data into a portable graymap
SYNOPSIS
psidtopgm width height bits/sample [imagedata]
DESCRIPTION
Reads the "image" data from a PostScript file as input. Produces a portable graymap as output.
This program is obsoleted by pstopnm. What follows was written before pstopnm existed.
This is a very simple and limited program, and is here only because so many people have asked for it. To use it you have to manually
extract the readhexstring data portion from your PostScript file, and then give the width, height, and bits/sample on the command line.
Before you attempt this, you should at least read the description of the "image" operator in the PostScript Language Reference Manual.
It would probably not be too hard to write a script that uses this filter to read a specific variety of PostScript image, but the variation
is too great to make a general-purpose reader. Unless, of course, you want to write a full-fledged PostScript interpreter...
SEE ALSO
pnmtops(1), pgm(5)
AUTHOR
Copyright (C) 1989 by Jef Poskanzer.
02 August 89 psidtopgm(1)