Sponsored Content
Full Discussion: shell variable in awk
Top Forums Shell Programming and Scripting shell variable in awk Post 302132787 by robotronic on Monday 20th of August 2007 04:40:36 AM
Old 08-20-2007
If you don't have multiple occurrences of the same variable "$n" in file1, you can substitute the "gsub" command with "sub": this may increase performances a bit. Note that, in this manner, the original increasing for loop works well too.
Otherwise, as stated by ghostdog, you'll have to hardcode the update statement in the awk script.
 

10 More Discussions You Might Find Interesting

1. 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

2. Shell Programming and Scripting

Return Awk Variable to Shell

I'm a bit stuck in getting variable from awk to shell. I tried searching but most of them showing to assign to shell variable via.. VAR=`echo $line | awk -F: '{print $1}'` which is correct ofcourse My problem is multiple assignments of variable like this one. The above solution will give... (10 Replies)
Discussion started by: ryandegreat25
10 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

How to change awk and shell variable value?

In awk script, #!/bin/sh awk 'BEGIN{i=0;}{i=i+5;}END{print i}' in.txt vr=0; vr=$i; echo "$vr" How can i assign that value of i in $vr(variable) of shell script? (7 Replies)
Discussion started by: cola
7 Replies

5. Shell Programming and Scripting

Shell variable in awk

I have 3 files and each contain m*n matrix. m = number of rows (horizontal lines) n = number of columns (entries in a particular line) What I wish to find is the sum of the 2nd number in the last row. Ex file1.dat 2 5 8 8 4 6 7 8 3 8 3 7 file2.dat 3 4 1 4 8 4 0 3 4 7 3 7 ... (3 Replies)
Discussion started by: dynamics
3 Replies

6. Shell Programming and Scripting

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... (4 Replies)
Discussion started by: blazer789
4 Replies

7. Shell Programming and Scripting

How to use shell variable in awk?

How do you use a shell variable in awk? I am using Solaris 10 and don't have GNU products installed. File (transportation.txt) contents: car boat airplane snowmobile bicycle sled This awk statment works (prints from the car line down to bicycle awk '/car/,/bicycle/'... (8 Replies)
Discussion started by: thibodc
8 Replies

8. 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

9. Shell Programming and Scripting

Shell variable expansion in awk

I want to split one file input.tab into two separate ones, odd lines to input_reads1.txt, even lines to input_reads2.txt for a serial of files with similar name pattern. Also I want to "match" input/output file names to keep consistency of file name: CSEL_02.0_input.tab CSEL_03.4_input.tab... (2 Replies)
Discussion started by: yifangt
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 07:34 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy