Sponsored Content
Top Forums Shell Programming and Scripting How to change value in CSV columns and compare two files where Column1 is identical Post 302555946 by clx on Friday 16th of September 2011 07:26:57 AM
Old 09-16-2011
Like this?

Code:
$ cat f1
1;2;3;4;5;6;7
1;2;3;4;5;6;7
$ 
$ 
$ cat f2
1;X;3;4;5;C;7
1;X;3;4;5;C;7
$ 
$ awk 'BEGIN {FS=OFS=";"}{$7=$7*1.5}1' f1
1;2;3;4;5;6;10.5
1;2;3;4;5;6;10.5
$ 
$ 
$ awk -F\; 'BEGIN {FS=OFS=";"}NR==FNR {f1[$1] = $6; next} {print f1[$1],$0}' f1 f2 
6;1;X;3;4;5;C;7
6;1;X;3;4;5;C;7
$ 
$ 
$

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Need to compare two csv files values and write into another csv file

Hi all, Am new to scripting. So i just need your ideas to help me out. Here goes my requirement. I have two csv files 1.csv 2.csv abc,1.24 abc,1 def,2.13 def,1 I need to compare the first column of 1.csv with 2.csv and if matches then need to compare... (2 Replies)
Discussion started by: chinnahyd
2 Replies

2. Shell Programming and Scripting

How to compare 2 files & get only few columns based on a condition related to both files?

Hiiiii friends I have 2 files which contains huge data & few lines of it are as shown below File1: b.dat(which has 21 columns) SSR 1976 8 12 13 10 44.00 39.0700 70.7800 7.0 0 0.00 0 2.78 0.00 0.00 0 0.00 2.78 0 NULL ISC 1976 8 12 22 32 37.39 36.2942 70.7338... (6 Replies)
Discussion started by: reva
6 Replies

3. Shell Programming and Scripting

How to compare the columns in two .csv files?

Hi I have to compare two .csv files which having 4 columns and i am expecting the output if there is difference in the 3,4columns in two files with respect to the first column. if my statement is not clear please refer the example. Input: ----- File 1 : hostname MAC SWITCH_IP SWITCH_PORT... (7 Replies)
Discussion started by: Kanchana
7 Replies

4. Shell Programming and Scripting

Compare 2 csv files in ksh and o/p the difference in a new csv file

(say) I have 2 csv files - file1.csv & file2.csv as mentioned below: file1.csv ID,version,cost 1000,1,30 2000,2,40 3000,3,50 4000,4,60 file2.csv ID,version,cost 1000,1,30 2000,2,45 3000,4,55 6000,5,70 The... (7 Replies)
Discussion started by: Naresh101
7 Replies

5. Shell Programming and Scripting

Compare 2 csv files by columns, then extract certain columns of matcing rows

Hi all, I'm pretty much a newbie to UNIX. I would appreciate any help with UNIX coding on comparing two large csv files (greater than 10 GB in size), and output a file with matching columns. I want to compare file1 and file2 by 'id' and 'chain' columns, then extract exact matching rows'... (5 Replies)
Discussion started by: bkane3
5 Replies

6. Shell Programming and Scripting

Match columns from two csv files and update field in one of the csv file

Hi, I have a file of csv data, which looks like this: file1: 1AA,LGV_PONCEY_LES_ATHEE,1,\N,1,00020460E1,0,\N,\N,\N,\N,2,00.22335321,0.00466628 2BB,LES_POUGES_ASF,\N,200,200,00006298G1,0,\N,\N,\N,\N,1,00.30887539,0.00050312... (10 Replies)
Discussion started by: djoseph
10 Replies

7. Shell Programming and Scripting

Compare 2 files of csv file and match column data and create a new csv file of them

Hi, I am newbie in shell script. I need your help to solve my problem. Firstly, I have 2 files of csv and i want to compare of the contents then the output will be written in a new csv file. File1: SourceFile,DateTimeOriginal /home/intannf/foto/IMG_0713.JPG,2015:02:17 11:14:07... (8 Replies)
Discussion started by: refrain
8 Replies

8. Shell Programming and Scripting

Import 2 columns from 8 .csv files into pandas df (side by side) and write a new csv

I have 8 .csv files with 16 columns and "n" rows with no Header. I want to parse each of these .csv and get column and put the data into a new.csv. Once this is done, the new.csv should have 16 columns (2 from each input.csv) and "n" rows. Now, I want to just take the average of Column from... (3 Replies)
Discussion started by: Zam_1234
3 Replies

9. Shell Programming and Scripting

CSV File:Filter duplicate records from column1 & another column having unique record

Hi Experts, I have csv file with 30, 40 columns Pasting just 2 column for problem description. Need to print error if below combination is not present in file check for column-1 (DocumentNumber) and filter columns where value in DocumentNumber field is same. For all such rows, the field... (7 Replies)
Discussion started by: as7951
7 Replies

10. Shell Programming and Scripting

Compare 2 csv files

Hello, I want to compare two csv files expected.csv and actual.csv by fields "f3", "f4", "f5". Field "z" can be differnt. Each record identified by two fields: "number" +"key". Records are not sorted. Can you please help me to get such report: Error: Mismatch in the record... (4 Replies)
Discussion started by: Eugenne
4 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 04:55 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy