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Top Forums Shell Programming and Scripting Script to monitor diskspace of /home/ not to exceed 80% Post 302968742 by Shreyas N on Monday 14th of March 2016 06:06:56 AM
Old 03-14-2016
Rudic,
You are taking 6th column? I need 5th as it gives the percentage usage.
 

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TIFF2BW(1)						      General Commands Manual							TIFF2BW(1)

NAME
tiff2bw - convert a color TIFF image to greyscale SYNOPSIS
tiff2bw [ options ] input.tif output.tif DESCRIPTION
Tiff2bw converts an RGB or Palette color TIFF image to a greyscale image by combining percentages of the red, green, and blue channels. By default, output samples are created by taking 28% of the red channel, 59% of the green channel, and 11% of the blue channel. To alter these percentages, the -R, -G, and -B options may be used. OPTIONS
-c Specify a compression scheme to use when writing image data: -c none for no compression, -c packbits for the PackBits compression algorithm, -c zip for the Deflate compression algorithm, -c g3 for the CCITT Group 3 compression algorithm, -c g4 for the CCITT Group 4 compression algorithm, and -c lzw for Lempel-Ziv & Welch (the default). -r Write data with a specified number of rows per strip; by default the number of rows/strip is selected so that each strip is approxi- mately 8 kilobytes. -R Specify the percentage of the red channel to use (default 28). -G Specify the percentage of the green channel to use (default 59). -B Specify the percentage of the blue channel to use (default 11). SEE ALSO
pal2rgb(1), tiffinfo(1), tiffcp(1), tiffmedian(1), libtiff(3) Libtiff library home page: http://www.remotesensing.org/libtiff/ libtiff November 2, 2005 TIFF2BW(1)
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