multiple regex finding in files

Tags

shell scripts

Top Forums Shell Programming and Scripting multiple regex finding in files

04-25-2010

Registered User

364, 3

Join Date: Mar 2008

Last Activity: 2 November 2018, 6:40 PM EDT

Posts: 364

Thanks Given: 31

Thanked 3 Times in 3 Posts

multiple regex finding in files

Hello folks,

I have a text file aa.txt that contains below text

Code:

(\')|(\-\-)
((\%3D)|(=))
20%0d%

i want to search each line pattern in /opt/1.log and /opt/2.log. Can some one suggest

Last edited by Scott; 04-25-2010 at 10:02 AM.. Reason: Code tags, please...

learnbash

View Public Profile for learnbash

Find all posts by learnbash

04-25-2010

Registered User

7,747, 559

Join Date: Feb 2007

Last Activity: 20 April 2020, 11:28 AM EDT

Location: The Netherlands

Posts: 7,747

Thanks Given: 139

Thanked 559 Times in 520 Posts

Assuming your grep version supports the given options:

Code:

grep -Ff aa.txt /opt/1.log /opt/2.log

Franklin52

View Public Profile for Franklin52

Find all posts by Franklin52

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Finding total distinct count from multiple csv files through UNIX script

Hi All , I have multiple pipe delimited csv files are present in a directory.I need to find out distinct count on a column on those files and need the total distinct count on all files. We can't merge all the files here as file size are huge in millions.I have tried in below way for each...

2. Shell Programming and Scripting

finding matches between multiple files from different directories

Hi all... Can somebody pls help me with this... I have a directory (dir1) which has many subdirectories(vr001,vr002,vr003..) with each subdir containing similar text file(say ras.txt). I have another directory(dir2) which has again got some subdir(vr001c,vr002c,vr003c..) with each subdir...

3. Shell Programming and Scripting

help for fast way of finding line number for a regex

Hello, I am trying to find out the line numbers where regex match and put them into a file with below command: awk '/'$pat'/ {print NR}' $fileName >> temp.txt where $pat is the regex but this command is taking a lot of time to execute with bigger files for size more than 5000000...

4. UNIX for Dummies Questions & Answers

awk to match multiple regex and create separate output files

Howdy Folks, I have a list that looks like this: (file2.txt) AAA BBB CCC DDD and there are 24 of these short words. I am matching these patterns to another file with 755795 lines (file1.txt). I have this code for matching: awk -v f2=file2.txt ' BEGIN { while(...

5. UNIX for Dummies Questions & Answers

Finding and Extracting uniq data in multiple files

Hi, I have several files that look like this: File1.txt Data1 Data2 Data20 File2.txt Data1 Data5 Data10 File3.txt Data1 Data2 Data17 File4.txt

6. Shell Programming and Scripting

Script to put block comment after finding regex in xml file

hi, i need my bash script to find regex in xml file.. and comment 2 lines before and after the line that contains regex.. can't use # needs to be  and the end of the comment. so eg.. first block <filter> <filter-name>MyRegEx</filter-name> ...

7. Shell Programming and Scripting

finding multiple files using find command

I am trying to search for 2 files using the find command as below find -name file1.txt -a -name file2.txt It doesn't give a result although the files exist in the folder, however when i try the following find -name file1.txt -o -name file2.txt It does give me the result. ./file2.txt...

8. UNIX for Dummies Questions & Answers

Finding nth line across multiple files

I have several files (around 50) that have the similar format. I need to extract the 5th line from every file and output that into a text file. So far, I have been able to figure out how to do it for a single file: $ awk 'NR==5' text1.txt > results.txt OR $ sed -n '5p' text1.txt > results.txt...

9. UNIX for Dummies Questions & Answers

Finding names in multiple files - second attempt

I couldn't find the original thread that I created and since I didn't get a definitive answer, I figured I'd try again. Maybe this time I can describe what I want a little better. I've got two files, each with thousands of names all separated by new line. I want to know if 'name in file1'...

10. UNIX for Dummies Questions & Answers

Finding Names in multiple files

What's the best way to see if a common name exists in two separate files?

Shell Programming and Scripting