Insert external variable in a AWK pattern Post: 302371000

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1. Shell Programming and Scripting

awk help (external variable)

i need help with an awk question. i am looking to have an external variable be defined outside of awk but used in awk. so if we have fields $1, $2, $3 so on and so forth, i would like to be able to dictate what field is being printed by something like $. so if i had a counter called test, make it 3...

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If statement in awk with external variable

So I have a if statement inside an awk to check if $2 of a awk equals a specific IP but the test fails. So here is what I have. # !/bin/sh echo "Enter client ID" read ID echo "Enter month (01, 02, 03)" read month echo "Enter day (03, 15)" read day echo "Enter Year (07, 08)" read...

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sed/awk to insert multiple lines before pattern

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4. UNIX for Dummies Questions & Answers

insert variable into awk

I'm trying to insert a filename into awk. filename="12345.wmv" I have tried this: awk '/$filename/{print $0}' infile and this: awk -v fn=$filename '/$fn/{print $0}' infile How do I insert the variable into awk?

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using an awk internal variable as parameter for an external array

Hello, I am running a bash script under linux which first defines an CA-array like j=0 num1=120.00 num2=10.00 until do CA='echo $num1 + $j*$num2' j=$ done within the later awk section of this same script I want to read data from a file. If the value of the second column is...

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[awk] - how to insert an external variable

I want to incorporate the variable in the for statement as a column of my processed file. In the INCORRECT example below, it is $i which corresponds to the i in my for loop: for i in x86_64 i686; do awk '{ print $1" "$4" "$5" "$i }'awk $file-$i > processed-$i.log doneThanks!

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Help needed with awk external variable

I'm trying to get the universities result data into different file, where the $9 contains unversity field and field7,4 & 5 contains the keys to sort the students by marks. How to use uni variable to match against $9 inside awk? c=0 for uni in `cat /tmp/global_rank| awk -F ',' '{print...

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Hi, I am trying to write a bash script in which I need to pass a external variable to the awk program. I tired using -v but it not accepting the value. Here is my sample code. #!/usr/bin/bash ###################################################################################### ####...

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awk to insert line previous to a pattern?

I have a very long line with certain patters embedded in there. I need to be able to read that line, and when it encounters that pattern, create a new line. I want the pattern to be the beginning of the new line. I thought sed or awk could do this, but everything I try in sed gives me a "sed...

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awk - saving results of external script to variable.

So, I've been playing with speeding up some analysis we do by using multiple threads of awk (actually, mawk, but code-compatible as far as I use it) on multiple CPU cores. So, I have a big data file and I have several copies of exactly the same processor script, written in mawk. I also have a...

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grub-render-label

GRUB-RENDER-LABEL(1)                                               User Commands                                              GRUB-RENDER-LABEL(1)

NAME

       grub-render-label - generate a .disk_label for Apple Macs.

SYNOPSIS

       grub-render-label [OPTION...] [OPTIONS]

DESCRIPTION

       Render Apple .disk_label.

       -b, --bgcolor=COLOR
              use COLOR for background

       -c, --color=COLOR
              use COLOR for text

       -f, --font=FILE
              use FILE as font (PF2).

       -i, --input=FILE
              read text from FILE.

       -o, --output=FILE
              set output filename. Default is STDOUT

       -t, --text=STRING
              set the label to render

       -v, --verbose
              print verbose messages.

       -?, --help
              give this help list

       --usage
              give a short usage message

       -V, --version
              print program version

       Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options.

REPORTING BUGS

       Report bugs to <bug-grub@gnu.org>.

SEE ALSO

       The  full  documentation  for grub-render-label is maintained as a Texinfo manual.  If the info and grub-render-label programs are properly
       installed at your site, the command

              info grub-render-label

       should give you access to the complete manual.

grub-render-label (GRUB) 2.02-2ubuntu8.3                             July 2018                                                GRUB-RENDER-LABEL(1)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

awk help (external variable)

Discussion started by: pupp

2. Shell Programming and Scripting

If statement in awk with external variable

Discussion started by: doublejz

3. Shell Programming and Scripting

sed/awk to insert multiple lines before pattern

Discussion started by: zksailor534

4. UNIX for Dummies Questions & Answers

insert variable into awk

Discussion started by: locoroco