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Full Discussion: Decompress (with gunzip) recursively, but do not delete original gz file
Top Forums Shell Programming and Scripting Decompress (with gunzip) recursively, but do not delete original gz file Post 302487551 by methyl on Wednesday 12th of January 2011 08:37:14 PM
Old 01-12-2011
What Operating System and version are you running?
What Shell do you use?
Can you post a sample directory listing of a representative directory?
Are old_archive and new_archive on the same filesystem? This question is very important because of the way "mv" works.
Scheduling. How often do you run this job? There would appear to be opportunity to carry out the online backup of the original files in advance.

Quote:
But is time consuming.
How much time? Seconds, Minutes, Hours, Days, Weeks ?


Quote:
sized related errors during the pipe process
Not clear what this means. Please post what you typed, what you expected to happen, what actually happened. Don't forget to include any error messages and a "ls -la" directory listing of any files involved.
 

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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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