Sponsored Content
Top Forums Shell Programming and Scripting Assign value to external variables from awk Post 302531973 by yazu on Sunday 19th of June 2011 05:15:24 AM
Old 06-19-2011
Quote:
Is there a way to assign values returned by awk to external variables from inside the awk command?
No. But maybe you need something like this:
Code:
% cat testfile                                                         
Name,Year,Grade1,Grade2,Grade3
Name,Year,Grade1,Grade2,Grade3
Name,Year,Grade1,Grade2,Grade3
app@m11 ~/tmp
% cat testfile | tr ',' ' ' | while read name year grade1 grade2 grade3
do
  echo $grade1
  echo $grade2
  echo $grade3
done
Grade1
Grade2
Grade3
Grade1
Grade2
Grade3
Grade1
Grade2
Grade3

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Assign variables with cut

I need to read a file (a list) and assign the value to a variable (for each line), I'm looping until the end of the file. My problem is, I want to assign 2 separate variables from the list. The process I'm using is: awk '{print $3}' file1 > file2 awk '{print $4}' file1 > file3 cat file2... (2 Replies)
Discussion started by: douknownam
2 Replies

2. Shell Programming and Scripting

awk - arithemetic functions with external variables

I'm trying to get awk to do arithmetic functions with external variables and I'm getting an error that I cannot figure out how to fix. Insight would be appreciated money=$1 rate1=$(awk -F"\t " '/'$converting'/{print $3}' convert.table) rate2=$(awk -F"\t"... (2 Replies)
Discussion started by: DKNUCKLES
2 Replies

3. Shell Programming and Scripting

Awk/shell question: Read from file and assign to variables.

Is anyone able to help with writing a program that will do the following: 1. Read the contents of a file, line by line, and on each line, assign each of the two columns to a shell variable. 2. perform an action on the variables 3. Read the next line. Here is what I've gotten so far. ... (3 Replies)
Discussion started by: akbar
3 Replies

4. Shell Programming and Scripting

Substituting variables from external files

Hi All, I have the following problem: 1. I have a file containing a line: a,b,d,${d},e,f 2. From within a script I grep the file for '^a,' to get the line 3. I obtain the fourth field as follows: Field4="$( print -r $fileEntry | cut -d, -f4 )" 4. The script exports variables at the... (1 Reply)
Discussion started by: oneillc9
1 Replies

5. Shell Programming and Scripting

assign a command line argument and a unix command to awk variables

Hi , I have a piece of code ...wherein I need to assign the following ... 1) A command line argument to a variable e.g origCount=ARGV 2) A unix command to a variable e.g result=`wc -l testFile.txt` in my awk shell script When I do this : print "origCount" origCount --> I get the... (0 Replies)
Discussion started by: sweta_doshi
0 Replies

6. Shell Programming and Scripting

how to assign a value to several variables inside awk call

Hi I am using 'awk" to get file size and date of the file: op - sundev3 $ ls -l /bb/bin/tsfiles.sel | awk '{print $5 $6 $7}' 1587May8 May be somobody knows the way to combine this command with variable assignmet inside the awk, so I would have variables SIZE, MONTH and DATE assigned after... (1 Reply)
Discussion started by: aoussenko
1 Replies

7. Shell Programming and Scripting

match and assign variables

Hi guys, I'm currently writing a script for automating a FreeBSD ZFS setup (ZFSonRooT). I got stuck at one point for raidz(1,2 a.k.a raid5,6) and am in need of assistance. This is what I need. example: #!/bin/sh <- must stay sh echo -n "hdd list: " read hdd_list echo -n "hdd label list:... (2 Replies)
Discussion started by: da1
2 Replies

8. Shell Programming and Scripting

How can we assign value to an array variable from an external file?

is it possible to assign value to an array variable from an external file?? if yes then how?? I am using below code but its not working. #!bin/bash myarray < file_name echo ${mayarray} (6 Replies)
Discussion started by: mukulverma2408
6 Replies

9. Shell Programming and Scripting

awk - Why can't value of awk variables be passed to external functions ?

I wrote a very simple script to understand how to call user-defined functions from within awk after reading this post. function my_func_local { echo "In func $1" } export -f my_func_local echo $1 | awk -F"/" '{for (k=1;k<=NF;k++) { if ($k == "a" ) { system("my_local_func $k") } else{... (19 Replies)
Discussion started by: sreyan32
19 Replies

10. Shell Programming and Scripting

awk to assign points to variables based on conditions and update specific field

I have been reading old posts and trying to come up with a solution for the below: Use a tab-delimited input file to assign point to variables that are used to update a specific field, Rank. I really couldn't find too much in the way of assigning points to variable, but made an attempt at an awk... (4 Replies)
Discussion started by: cmccabe
4 Replies
PAPS(1) 						      General Commands Manual							   PAPS(1)

NAME
paps - UTF-8 to PostScript converter using Pango SYNOPSIS
paps [options] files... DESCRIPTION
paps reads a UTF-8 encoded file and generates a PostScript language rendering of the file. The rendering is done by creating outline curves through the pango ft2 backend. OPTIONS
These programs follow the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is included below. --landscape Landscape output. Default is portrait. --columns=cl Number of columns output. Default is 1. Please notice this option isn't related to the terminal length as in a "80 culums terminal". --font=desc Set the font description. Default is Monospace 12. --rtl Do right to left (RTL) layout. --paper ps Choose paper size. Known paper sizes are legal, letter and A4. Default is A4. Postscript points Each postscript point equals to 1/72 of an inch. 36 points are 1/2 of an inch. --bottom-margin=bm Set bottom margin. Default is 36 postscript points. --top-margin=tm Set top margin. Default is 36 postscript points. --left-margin=lm Set left margin. Default is 36 postscript points. --right-margin=rm Set right margin. Default is 36 postscript points. --gutter-width=gw Set gutter width. Default is 40 postscript points. --help Show summary of options. --header Draw page header for each page. --markup Interpret the text as pango markup. --lpi Set the lines per inch. This determines the line spacing. --cpi Set the characters per inch. This is an alternative method of specifying the font size. --stretch-chars Indicates that characters should be stretched in the y-direction to fill up their vertical space. This is similar to the texttops behaviour. AUTHOR
paps was written by Dov Grobgeld <dov.grobgeld@gmail.com>. This manual page was written by Lior Kaplan <kaplan@debian.org>, for the Debian project (but may be used by others). April 17, 2006 PAPS(1)
All times are GMT -4. The time now is 11:06 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy