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Full Discussion: Date format change in a csv file
Top Forums Shell Programming and Scripting Date format change in a csv file Post 302948997 by Don Cragun on Sunday 5th of July 2015 07:40:19 PM
Old 07-05-2015
Quote:
Originally Posted by Aia
Exactly, it can be substituted, since in the context I wrote it, it is interchangeable.
It seems that you don't care about portable code. It seems that you don't care about making suggestions that will work on any system likely to be used by the readers of this forum. It seems that you frequently make suggestions without testing them and believe that readers should be smart enough to ignore the suggestions you make that might not work on their system (on any system).

But, there are many users on these forums (including me) who are using UNIX systems that do not include GNU date.

Moderator's Comments:
Mod Comment Please do not denigrate users (like cfajohnson, Scrutinizer, and Smiling Dragon) who:
  • try to write portable code,
  • warn readers that extensions are being used that might not be portable, or
  • ask question submitters what OS and shell they're using so suggestions can be made that will work in the submitter's environment.

Please also review rule 2 in the rules you agreed to when you joined this forum.
 

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LEARN ABOUT DEBIAN

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
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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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