Sponsored Content
Top Forums Shell Programming and Scripting Shell variable as awk condition Post 302915063 by neutronscott on Sunday 31st of August 2014 06:13:39 AM
Old 08-31-2014
well your $2 is names in this example, so that should be $3. the proper way to pass and use variables follows:

Code:
$ value=345
$ awk -vn="$value" '$3 == n' file
2 Dick 345 abc 678
4 Tom 345 cde 345

what you describe is using a shell variable to hold an awk program.

Code:
mute@thedoctor:~$ code='$3 == 345 || $3 == 123'
mute@thedoctor:~$ awk "$code" file
1 Tom 123 abc 345
2 Dick 345 abc 678
4 Tom 345 cde 345
5 Harry 123 cde 567

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

shell variable in awk

Hi All, How can i use the file for printing in awk file1 ---------- update table crn_ras_disc_dtl a set a.a5=$1,a.a1=$2,a.a2=$3,a.a3=$4,a.a4=$5; file2 -------- 10|KUMAR|23|MALE|US 20|RAJ|24|MALE|AU Output --------- update table crn_ras_disc_dtl a set... (12 Replies)
Discussion started by: cskumar
12 Replies

2. Shell Programming and Scripting

Shell variable with awk

line_no=6 echo 'Phone,' `awk 'NR==$line_no{print;exit}' <filename>` what is the error in this.. it says.. awk: Field $() is not correct. The input line number is 1. The file is <filename>. The source line number is 1. i want to print the data in the $line_no line of a certain... (2 Replies)
Discussion started by: St.Fartatric
2 Replies

3. Shell Programming and Scripting

assign awk's variable to shell script's variable?

Dear All, we have a command output which looks like : Total 200 queues in 30000 Kbytes and we're going to get "200" and "30000" for further process. currently, i'm using : numA=echo $OUTPUT | awk '{print $2}' numB=echo $OUTPUT | awk '{print $5}' my question is : can I use just one... (4 Replies)
Discussion started by: tiger2000
4 Replies

4. Shell Programming and Scripting

Problem using shell variable in awk if condition

Hi friends, I'm having a bit of a problem using shell variable in an awk if statement. Please note that i'm using -v option as listed in many forums but I still don't get it working. Here's my code. Kindly help as I've gone crazy trying to work this out :wall: #!/bin/bash -xv ... (4 Replies)
Discussion started by: vishwas.s
4 Replies

5. Shell Programming and Scripting

HELP with AWK one-liner. Need to employ an If condition inside AWK to check for array variable ?

Hello experts, I'm stuck with this script for three days now. Here's what i need. I need to split a large delimited (,) file into 2 files based on the value present in the last field. Samp: Something.csv bca,adc,asdf,123,12C bca,adc,asdf,123,13C def,adc,asdf,123,12A I need this split... (6 Replies)
Discussion started by: shell_boy23
6 Replies

6. Shell Programming and Scripting

Awk: How to get an awk variable out to the shell, using system() ?

I am reasonably capable with awk and its quirks, but not with shell weirdness. This has to be Bourne Shell for portability reasons. I have an awk program that is working just fine; it handles multiple input streams and produces several reports, based on the request (-v Variables). In addition... (3 Replies)
Discussion started by: DerekAsirvadem
3 Replies

7. Shell Programming and Scripting

If else condition inside for loop of awk command in UNIX shell scripting

Hi , Please excuse me for opening a new thread i am unable to find out the syntax error in my if else condition inside for loop in awk command , my actual aim is to print formatted html td tag when if condition (True) having string as "failed", could anyone please advise what is the right... (2 Replies)
Discussion started by: karthikram
2 Replies

8. Shell Programming and Scripting

How to add second variable in awk nested if condition?

Hi Gurus, I have a command to assign value based on input value. current condition is "if pattern matches "case", then assign "HOLD" else "SUCC"right now, I need to add one more condition (variable name is VAR). the condition is "if pattern1 matches "case", then assign "HOLD" else if... (2 Replies)
Discussion started by: ken6503
2 Replies

9. Shell Programming and Scripting

How to pass IF condition via shell varibale in awk?

Hello, I have one query regarding passing IF condition shell variable inside awk. Here is the case- File content of keydefn.exp 201~2~LM Limit 02-current value~Limit 02 ~Limit02~Current~Value ~N~Y~S~0~9999999 201~3~LM Limit 03-current value~Limit... (2 Replies)
Discussion started by: anillambait
2 Replies

10. UNIX for Beginners Questions & Answers

How can I assign awk's variable to shell script's variable?

I have the following script, and I want to assign the output ($10 and $5) from awk to N and L: grdinfo data.grd | awk '{print $10,$5}'| read N L output from gridinfo data.grd is: data.grd 50 100 41 82 -2796 6944 0.016 0.016 3001 2461. where N and L is suppose to be 3001 and 100. I use... (8 Replies)
Discussion started by: geomarine
8 Replies
IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)
All times are GMT -4. The time now is 01:52 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy