Using variable in awk command Post: 302786197

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passing variable values to awk command

Hi, I have a situation where I have to specify a different value to an awk command, I beleive i have the gist of this done, however I am not able to get this correct. Here is what I have so far echo $id 065859555 This value occurs in a "pipe" delimited file in postition 8. Hence I would...

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Hi All, I have a awk command that is stored in a variable. the value of the variable cmd is: (mean output of echo $cmd is: ) awk -F";" '{print $1}' Now I want to execute this command. How can I do that???? Quick Reply will be appreciated. Regards, Amit

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How to use same variable value inside as well as outside of the awk command?

Hi Jim, The following script is in working state. But i m having one more problem with awk cmd. Could you tell me how to use any variable inside awk or how to take any variable value outside awk. My problem is i want to maintain one property file in which i am declaring variable value into that...

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Problem with Variable and AWK command

Okay, so I am trying to use a count variable to reference the column of output sent from an echo statement. So I am trying to do this #!/bin/bash CURRENT=$PWD VAR=3 CHANGE=`echo $CURRENT | awk -F "/" '{ print \$$VAR }'` This instead of giving me the third instance after the "/" gives...

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use shell variable in awk command

Trying to do something like this ls -lrt | awk '$9=="test5"' -rw-r--r-- 1 lrmq db2iadm1 381 Sep 20 21:56 test5 But now, I need to give a variable in place of test5. For example let's define x as test5 x=test5 ls -lrt | awk '$9=="$x"' This doesn't seem to be working. It doesn't take the...

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Variable as input to awk command

Hi Gurus, I need a suggestion, please help. I have a input file as below : abc.txt : * xxxx: 00000 xxxxx: 00000 xxxx: RANDOM xxx: RANDOM **************************xxxxxxx*** * abc ****************************** abc: abc: ...

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Variable in AWK command help

here is what i have so far delim=`cat $HOME/tmp/interchange_hold | head -1 | cut -b4` cat $HOME/tmp/rawfile_hold | ( while read line se_check=`echo $line | awk -F: -v awkvar="$delim" '{ print $1}'` delim will hold the 4th char of a file. Lets say that char is a * the line im...

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Using a variable in the awk command

Hi Guys, Can anyone of you please tell me how to use a variable inside a awk command. For ex - if am printing the third column with respect to a pattern with delimiter ~ awk -F~ '$3=="pattern"' <file name> - This works, Now here I have a set of patterns in a file and I want to put it in...

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Storing awk command in a variable

I'm working on a script in which gives certain details in its output depending on user-specified options. So, what I'd like to do is something like: if then awkcmd='some_awk_command' else awkcmd='some_other_awk_command' fi Then, later in the script, we'd do something like: ...

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Variable in awk command

Hello All, I am trying to run a script to extract data from the file. The format of the file is as below: filename: sample.log 12345| ABCD 23456| GKHY 33454| ABCD 98765| TTRRI want to run a command in AWK as show below extract.sh #!/bin/bash echo...

LEARN ABOUT OPENSOLARIS

pbmreduce

pbmreduce(1)						      General Commands Manual						      pbmreduce(1)

NAME

       pbmreduce - read a portable bitmap and reduce it N times

SYNOPSIS

       pbmreduce [-floyd|-fs|-threshold ] [-value val] N [pbmfile]

DESCRIPTION

       Reads a portable bitmap as input.  Reduces it by a factor of N, and produces a portable bitmap as output.

       pbmreduce  duplicates  a  lot  of  the  functionality  of pgmtopbm; you could do something like pnmscale | pgmtopbm, but pbmreduce is a lot
       faster.

       pbmreduce can be used to "re-halftone" an image.  Let's say you have a scanner that only produces black&white, not grayscale, and it does a
       terrible job of halftoning (most b&w scanners fit this description).  One way to fix the halftoning is to scan at the highest possible res-
       olution, say 300 dpi, and then reduce by a factor of three or so using pbmreduce.  You can even correct the  brightness	of  an	image,	by
       using the -value flag.

OPTIONS

       By  default,  the  halftoning after the reduction is done via boustrophedonic Floyd-Steinberg error diffusion; however, the -threshold flag
       can be used to specify simple thresholding.  This gives better results when reducing line drawings.

       The -value flag alters the thresholding value for all quantizations.  It should be a real number between 0 and 1.  Above 0.5  means  darker
       images; below 0.5 means lighter.

       All flags can be abbreviated to their shortest unique prefix.

SEE ALSO

       pnmenlarge(1), pnmscale(1), pgmtopbm(1), pbm(5)

AUTHOR

       Copyright (C) 1988 by Jef Poskanzer.

								  02 August 1989						      pbmreduce(1)

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