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Full Discussion: Compare sum of two columns if variance is zero do nothing else send an email
Top Forums UNIX for Beginners Questions & Answers Compare sum of two columns if variance is zero do nothing else send an email Post 303018242 by RudiC on Friday 1st of June 2018 07:44:12 AM
Old 06-01-2018
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LEARN ABOUT DEBIAN

advdef

AdvanceCOMP Deflate Compression Utility(1)		      General Commands Manual			AdvanceCOMP Deflate Compression Utility(1)

NAME

       advdef - AdvanceCOMP Deflate Compression Utility

SYNOPSIS

       advdef [-z, --recompress] [-0, --shrink-store]
	    [-1, --shrink-fast] [-2, --shrink-normal] [-3, --shrink-extra]
	    [-4, --shrink-insane] [-f, --force] [-q, --quiet]
	    [-h, --help] [-V, --version] FILES...
DESCRIPTION

       The main purpose of this utility is to recompress the data present in the .png, .mng, .gz, .tgz and .svgz files.

       The internal structure of the files isn't changed.  Only the compressed data is modified.

OPTIONS

       -z, --recompress FILES...
	      Recompress  the  specified  files.  If the -1, -2, -3, -4 options are specified it's used the smallest file choice from the previous
	      compressed data and the new compression. If the -0 option is specified the file is always rewritten without any compression.

       -0, --shrink-store
	      Disable the compression. The file is only stored and not compressed. The file is always rewritten also if it's bigger.

       -1, --shrink-fast
	      Set the compression level to "fast".

       -2, --shrink-normal
	      Set the compression level to "normal". This is the default level of compression.

       -3, --shrink-extra
	      Set the compression level to "extra".

       -4, --shrink-insane
	      Set the compression level to "insane". It's VERY SLOW.

       -f, --force
	      Force the use of the new file also if it's bigger.

LIMITATIONS

       The advdef program cannot be used to recompress huge files because it needs to allocate memory for both the complete compressed and  uncom-
       pressed data.

COPYRIGHT

       This file is Copyright (C) 2003, 2004 Andrea Mazzoleni

SEE ALSO

       advpng(1), advmng(1), advzip(1), gzip(1), bzip2(1)

													AdvanceCOMP Deflate Compression Utility(1)
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