shell / awk doubt Post: 13508

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I'm having a file with 5 fields. I want to sort that file according to one field no 3. How shall I do using awk programming. Any input appreciatable. regards, vadivel.

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Hi all, column1 -------- 33 44 55 66 please provide the script using awk command to dispaly output 55. Help apperciated.. thanks, Nirmal

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Hi , I have a file in the below format: 1.txt awk 'BEGIN { printf ("%1s", "man" )} ' awk 'BEGIN { printf ("%9s", "women" )} ' awk 'BEGIN { printf ("%56s", "human")} ' ## ### ## echo "$!" ## awk 'BEGIN { printf ("%1s", "aaa" )} ' awk 'BEGIN { printf ("%19s", "bbb" )} ' ...

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I have executed the below command: find . -name "Ks*" -type f -exec ls -ltr {} \; | awk '{printf("%ld %s %d %s \n",$5,$6,$7,$8,$9)}' and here is the output: 1282 Oct 7 2004 51590 Jul 10 2006 921 Oct 7 2004 1389 Jun 4 2003 1037 May 19 2004 334 Mar 24 2004 672 Jul 8 2003 977...

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I have a file sample.txt with the following contents: the following gives output as awk 'NF{s=$0; print s}' sample.txt but, awk 'NF{s=$0}{print s}' sample.txtgives output as why this difference, can someone explain me?

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instead of writing print command in awk, i saw in some posts that we can simply write a number before we end the awk command and it will print the file. As given below: $awk '{some manipulation; print}' filename $awk '{some manipulation}1' filename I also tried replacing the...

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Hi, I got a below requirement from this forum, but the solution provided was not clear. Below is the requirement Input file A 1 Z A 1 ZZ B 2 Y B 2 AA Required output B Y|AA A Z|ZZ

LEARN ABOUT DEBIAN

pfsgamma

pfsgamma(1)						      General Commands Manual						       pfsgamma(1)

NAME

       pfsgamma - Apply gamma correction to color or gray-scale images

SYNOPSIS

       pfsgamma [--gamma <gamma> | --inverse-gamma <inv-gamma>] [--mul <multiplier>]

DESCRIPTION

       Use  this  command  to  gamma correct a stream of pfs images. Gamma correction is equivalent to raising value of R, G and B (or Y for gray-
       scale images) channels to 1/gamma power. More information on gamma correction can be found at:

       http://www.poynton.com/notes/colour_and_gamma/GammaFAQ.html

       This command can work on color images, in which case XYZ channels are transformed to RGB space, then they are gamma corrected  before  they
       are converted back to XYZ. For gray-scale images (only Y channel and XZ missing) gamma correction is applied only to Y channel.

       Data can be multiplied by an optional multiplier before gamma correction.

       Note:  gamma  correction  will set the 'LUMINANCE' tag to 'DISPLAY' thus cancelling any sRGB correction when saving to LDR files (like PPM,
       TIFF). This will also cause a warning message when saving to HDR files, because the intensities after gamma  correction	are  not  linearly
       related to luminance any more.

OPTIONS

       --gamma <gamma>, -g <gamma>
	      Perform  gamma correction (input^(1/gamma)). This can be used to convert images from relative luminance or radiance to pixel values.
	      Default value: 1.0

       --inverse-gamma <inv-gamma>, -i <inv-gamma>
	      Perform inverse gamma correction (input^(gamma)). This can be used to convert images from pixel values to relative radiance or lumi-
	      nance.

       --mul <mul>, -m <mul>
	      Multiply data by this value before gamma correction. Default value: 1

EXAMPLES

       pfsin memorial.hdr | pfsgamma -g 1.8 -m 10 | pfsout memorial_gc.ppm

	      Multiply memorial image by 10, gamma correct it and save to memorial_gc.ppm.

SEE ALSO

       pfsin(1) pfsout(1) pfsdisplayfunction(1)

BUGS

       Please report bugs and comments to the pfstools discussion group (http://groups.google.com/group/pfstools).

																       pfsgamma(1)

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LEARN ABOUT DEBIAN

pfsgamma