Conditional replacement of a delimiter Post: 302515376

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Dear all, i have a proble. in my input file i have records with delimiter like aa-------bb------cc--vghjav---ef----kjd dj--------ih------yy--ujdjkkl---dd----jid now i want to replace the delimiter "-" with "~" i have used a command i.e cat FILENAME | tr "-" "~" >> Newfile this command...

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Hi all, I need a bash, sed, awk script or one liner to do the following task: This is the format of a text file: 2010-06-11 20:01 902656 HOP-W-100412-1.doc 2010-11-05 18:01 364447 NEX-W-101104-1 2010-07-06 10:01 64512 Cerintele 2010-07-06 10:01 599420 content 2010-07-19 14:01 1785344...

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LEARN ABOUT OPENSOLARIS

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

Replacement of Delimiter

Discussion started by: panknil

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Substring based on delimiter, finding last delimiter

Discussion started by: gupt_ash

3. Shell Programming and Scripting

HELP Need in SED/PERL conditional line replacement

Discussion started by: robin.r888

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Conditional tab replacement sed/awk

Discussion started by: benackland