Extract file records based on some field conditions Post: 302475773

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i have a file in unix in which the records are like this aaa 123 233 aaa 234 222 aaa 242 222 bbb 122 111 bbb 122 123 ccc 124 222 In the output i want only the below records aaa ccc The validation logic is 1st column and 2nd column need to be considered if both columns values are...

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Shell script to extract data from csv file based on certain conditions

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Calculate the total 4 field based on the conditions

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LEARN ABOUT OSX

ppmtopgm

ppmtopgm(1)						      General Commands Manual						       ppmtopgm(1)

NAME

       ppmtopgm - convert a portable pixmap into a portable graymap

SYNOPSIS

       ppmtopgm [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as  input.  Produces a portable graymap as output.  The output is a "black and white" rendering of the original
       image, as in a black and white photograph.  The quantization formula used is .299 r + .587 g + .114 b.

       Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any  ppm  program  can
       read  pgm  (and	pbm  ) files automatically.  pgmtoppm is for colorizing a pgm file.  Also, see ppmtorgb3 for a different way of converting
       color to gray.  And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate  the  original
       colors, not necessarily a way that looks like a black and white photograph.

QUOTE

       Cold-hearted orb that rules the night
       Removes the colors from our sight
       Red is gray, and yellow white
       But we decide which is right
       And which is a quantization error.

SEE ALSO

       pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5)

AUTHOR

       Copyright (C) 1989 by Jef Poskanzer.

								   10 April 2000						       ppmtopgm(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

extract lines based on few conditions

Discussion started by: prvnrk

2. Shell Programming and Scripting

validating a file based on conditions

Discussion started by: trichyselva

3. Shell Programming and Scripting

using awk to count no of records based on conditions

Discussion started by: aemunathan

4. Shell Programming and Scripting

filtering records based on numeric field value in 8th position

Discussion started by: indusri