Sponsored Content
Top Forums Shell Programming and Scripting Matching two fields in two csv files, create new file and append match Post 303023727 by Scott on Friday 21st of September 2018 09:30:39 AM
Old 09-21-2018
The redirection is a shell thing, not an awk or sed thing. Put it after the awk command, regardless of which solution you use.

e.g.
Code:
awk ...... file2 file1 > file3

or
Code:
sed .. && awk ... file2 file1 > file3 && rm ...

or, when using multiple commands, you can wrap the whole thing in parenthesis, and redirect that, warts and all. e.g.
Code:
(command1 && command2 && command3) > file3

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to create a CSV File by reading fields from separate files

SHELL SCRIPT Hi, I have 3 separate files within a folder. Every File contains data in a single column like File1 contains data mayank sushant dheeraj File2 contains DSA_AT MG_AT FLAT_09 File3 contains data 123123 232323 (2 Replies)
Discussion started by: mayanksargoch
2 Replies

2. Shell Programming and Scripting

Match data based on two fields, and append to a line

I need to write a program to do something like a 'vlookup' in excel. I want to match data from file2 based on two fields (where both match) in file1, and for matching lines, add the data from two of the fields from file2 to file1. If anyone knows something in perl or awk that can do this, I'd be... (20 Replies)
Discussion started by: jamessmith01
20 Replies

3. UNIX for Dummies Questions & Answers

Match values from 2 files and append certain fields

Hi, I need help on appending certain field in my file1.txt based on matched patterns in file2.txt using awk or sed. The blue color need to match with one of the data in field $2 in file2.txt. If match, BEGIN and FINISHED value in red will have a new value from field $3 and $4 accordingly. ... (1 Reply)
Discussion started by: redse171
1 Replies

4. Shell Programming and Scripting

Matching and Merging csv data fields based on a common field

Dear List, I have a file of csv data which has a different line per compliance check per host. I do not want any omissions from this csv data file which looks like this: date,hostname,status,color,check 02-03-2012,COMP1,FAIL,Yellow,auth_pass_change... (3 Replies)
Discussion started by: landossa
3 Replies

5. Shell Programming and Scripting

awk help: Match data fields from 2 files & output results from both into 1 file

I need to take 2 input files and create 1 output based on matches from each file. I am looking to match field #1 in both files (Userid) and create an output file that will be a combination of fields from both file1 and file2 if there are any differences in the fields 2,3,4,5,or 6. Below is an... (5 Replies)
Discussion started by: ambroze
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. UNIX for Beginners Questions & Answers

How to count lines of CSV file where 2 fields match variables?

I'm trying to use awk to count the occurrences of two matching fields of a CSV file. For instance, for data that looks like this... Joe,Blue,Yes,No,High Mike,Blue,Yes,Yes,Low Joe,Red,No,No,Low Joe,Red,Yes,Yes,Low I've been trying to use code like this... countvar=`awk ' $2~/$color/... (4 Replies)
Discussion started by: nmoore2843
4 Replies

9. Shell Programming and Scripting

awk to print fields that match using conditions and a default value for non-matching in two files

Trying to use awk to match the contents of each line in file1 with $5 in file2. Both files are tab-delimited and there may be a space or special character in the name being matched in file2, for example in file1 the name is BRCA1 but in file2 the name is BRCA 1 or in file1 name is BCR but in file2... (6 Replies)
Discussion started by: cmccabe
6 Replies

10. UNIX for Beginners Questions & Answers

Match Fields between two files, print portions of each file together when matched in ([g]awk)'

I've written an awk script to compare two fields in two different files and then print portions of each file on the same line when matched. It works reasonably well, but every now and again, I notice some errors and cannot seem to figure out what the issue may be and am turning to you for help. ... (2 Replies)
Discussion started by: jvoot
2 Replies
diff3(1)						      General Commands Manual							  diff3(1)

NAME
diff3 - 3-way differential file comparison SYNOPSIS
file1 file2 file3 DESCRIPTION
compares three versions of a file, and prints disagreeing ranges of text flagged with these codes: all three files differ file1 is different file2 is different file3 is different The type of change required to convert a given range of a given file to some other is indicated in one of these ways: Text is to be appended after line number n1 in file f, where f = or Text is to be changed in the range line n1 through line n2. If n1 = n2, the range can be abbreviated to n1. The original contents of the range follows immediately after a indication. When the contents of two files are identical, the contents of the lower-numbered file is suppressed. Produces a script for the editor that can be used to incorporate into file1 all changes between file2 and file3 (see ed(1)); i.e., the changes that normally would be flagged and Produces a script to incorporate only changes flagged Produces a script to incorporate only changes flagged Produces a script that will incorporate all changes between file2 and file3, but treat overlapping changes (that is, changes that would be flagged with in normal listing) differently. The overlapping lines in both files will be inserted by the edit script bracketed by and lines. Produces a script that will incorporate only changes flagged , but treat these changes in the manner of option. The following command applies the resulting script to file1. EXTERNAL INFLUENCES
International Code Set Support Single- and multi-byte character code sets are supported. WARNINGS
Text lines that consist of a single period defeat Files longer than 64K bytes do not work. FILES
SEE ALSO
diff(1). diff3(1)
All times are GMT -4. The time now is 06:18 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy