sed replace Post: 302503198

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Hi, I want to change a particular string in a file with another string. This is part of a larger script file. I m using SED for this purpose: sed -e 's/hostname.domainname/${HOST}.${DOMAIN}/g' $sed_file>$tmp_file Where the occurance hostname.domainname has to be replaced with the...

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Hello, I have a comman separated file lets day data.txt in following format ,:000002 CH XIN9I.INDX, 34.7534909645,:000002 CH,:Index XIN9I.INDX ,:000063 CH XIN9I.INDX, 6.3062924781,:000063 CH,:Index XIN9I.INDX ,:000776 CH XIN9I.INDX, 2.7001954832,:000776 CH,:Index XIN9I.INDX I would like...

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Hi, i have a file as give below >cat sample_file param1 val1 2012-06-19 ##there can be one or more space after 2012-06-19 in the above file i want to replace val1 with a with value passed through a variable... below is the command i tried >parval='param1 val2' >par1=param1 >sed...

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I have a file whose output words are always like this: aaaa bbbb cccc dddd. Trying to arrange the data so that there are 2 columns such that the 1st word become the 1st column like this: aaaa aaaa aaaa bbbb aaaa cccc aaaa dddd Trying to use awk...

LEARN ABOUT SUNOS

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)

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How to replace using SED?

Discussion started by: mahatma

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Loop with sed command to replace line with sed command in it

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