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Full Discussion: File Modification
Top Forums Shell Programming and Scripting File Modification Post 302598594 by mnmonu on Wednesday 15th of February 2012 01:13:49 AM
Old 02-15-2012
Quote:
Originally Posted by balajesuri
Code:
cat input.txt | tr -d '\n' | sed 's/~\(\"[0-9]\{4\}\)/~\n\1/g'

Hi balajesuri,

your script is correct, but if input file looking like
Quote:
"0001"~"name"~"bb"~"20.25"~"0010"
~""~"0002"~"name"~"dd"~"35.50"~"25"~
""~"0003"~"name"~"aa"~"21.3

5"~"0056"~""~
and output
Quote:
"0001"~"name"~"bb"~"20.25"~"0010"~""~
"0002"~"name"~"dd"~"35.50"~"25"~""~
"0003"~"name"~"aa"~"21.35"~"0056"~""~
then your script not execute properly
Last edited by mnmonu; 02-15-2012 at 03:23 AM..
 

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LEARN ABOUT LINUX

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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