awk syntax Post: 302514856

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Help with Awk Syntax

I have written many awk commands which go in multiple lines. I have this confusion many times. Some time they work if i dont terminate them with "\" but some time error. Some time in "if" statements between if and else if i dont use ";" it gives error but sometimes it doesnt. The below...

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awk syntax help

I don't get correct output when I run this command line: nmap -sP failedhost.com | grep -i failed | awk -F '{print $6}' I basically want it to return 'failedhost.com' but its just showing the output of the nmap scan.

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AWK syntax

Hi I am trying to understand AWK syntax so I tried this command which gives me the home directory of root awk 'BEGIN { FS = ":"} {if ($1 == "root") print $6 }' /etc/passwd I would know what are the following commands doing. The first one prints all /etc/passwd, second prints nothing. ...

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awk syntax

Little bit confusing while using awk :confused::confused: In Sed while pattern search we can use "(double quotes) i mean $a=hello $cat file.txt |sed -n "/$a/p"this thing work fine But if i use it in awk it's not working How could i do the substitution of pattern by a variables and the...

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i have a ksh code that needs to be written in AWK. can someone please help me here? :( if }" | grep -c "$2") -gt 0 ] ; then print - "found $2 in array ignore" else print - "did not find $2 in array ignore" fi ignore=4ty56r ignore=er45ty . . . ignore=frhtg2

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I have a file which is comma separated and has quotes. I can use this command and awk -F"," '{ if ($4=="01" print $0 }' test.txt But this doesn't fetch me the data.since it has quotes. If the data has no quotes,the above command works fine. In Unix you can skip quote \" but this doesn't work....

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Hi, I would like to know what is the correct syntax to perform a function in awk. Although I have seen several examples, not get it to work, this is what I'm trying: #!/bin/bash awk function multi (number) { return number * 3 } print multi (4)Thanks

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Syntax Problem with awk

Hello, I have perl script,which take some part of data in the file. the below command works fine in normal cmd prompt. `awk '/CDI/ && // && !/Result for/ {print $3 $5 > "final.txt"}' datalist.txt`; `nawk -F"" '{print $2}' finalcdi.txt`; But not working. Please use code tags, thanks.

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Help with the awk syntax

Hello Experts: While writing a script to help one of the posts on here, I end up writing a wrong one. I am very much eager to know how this can be corrected. Aim was to not print specified columns - lets say out of 100 fields, need to print all but 5th, 10th, 15th columns. Someone already...

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Awk: syntax error

awk -F, ' NR>1 { BEGIN{ chr=$2 } END{ for (k in chr) {print k} } } ' $gene_file I've a really simple code. I want to store gene name and it's chromosome and in the end print them. I'm skipping line one as it contains headers. But I don't know why I get error as:

LEARN ABOUT MINIX

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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