Sponsored Content
Top Forums UNIX for Dummies Questions & Answers Grep -B used with -f? (Searching a file using a list of terms, output is lines before each match) Post 302880317 by Twinklefingers on Wednesday 18th of December 2013 07:57:30 PM
Old 12-18-2013
Grep -B used with -f? (Searching a file using a list of terms, output is lines before each match)

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How will you list only the empty lines in a file (using grep)

How will you list only the empty lines in a file (using grep) (1 Reply)
Discussion started by: JosephGerard
1 Replies

2. UNIX for Dummies Questions & Answers

How to list file names instead of lines when grep a gzcat command?

Hi, I want to list filenames instead of lines when i search in compresed files for a string. #gzcat *.gz | grep -l 12345 gives me: <stdin> Anyone got a solution on this problem? (2 Replies)
Discussion started by: HugoH
2 Replies

3. Shell Programming and Scripting

Script to search a large file with a list of terms in another file

Hi- I am trying to search a large file with a number of different search terms that are listed one per line in 3 different files. Most importantly I need to be able to do a case insensitive search. I have tried just using egrep -f but it doesn't seam to be able to handle the -i option when... (3 Replies)
Discussion started by: dougzilla
3 Replies

4. Shell Programming and Scripting

Find common terms in two text file, xargs, grep

Hello, I'm interested in finding all occurrences of the terms in file1 in file2, which are both csv files. I can do this with a loop but I'm interested in knowing if I can also do it with the help of xargs and grep. What I have tried: cat file1 | xargs grep file2 The problem is that... (15 Replies)
Discussion started by: eon
15 Replies

5. UNIX for Dummies Questions & Answers

Searching for terms contained in 2 separate files

Hi All ! As a dummy, I try to search for multiple string of characters contained in 2 types of list. Not clear? No it's not. Example: I have a tab-delimited file called "inventory" with 2 columns that looks like that: #ref #year,color xrt3 2000,blue gf5 2000,red,green,yellow... (4 Replies)
Discussion started by: lucasvs
4 Replies

6. Shell Programming and Scripting

Grep multiple terms and output to individual files

Hi all, I'll like to search a list of tems in a huge file and then output each of the terms to individual files. I know I can use grep -f list main.file to search them but how can I split the output into individual files? Thank you. (6 Replies)
Discussion started by: ivpz
6 Replies

7. Shell Programming and Scripting

Match list of strings in File A and compare with File B, C and write to a output file in CSV format

Hi Friends, I'm a great fan of this forum... it has helped me tone my skills in shell scripting. I have a challenge here, which I'm sure you guys would help me in achieving... File A has a list of job ids and I need to compare this with the File B (*.log) and File C (extend *.log) and copy... (6 Replies)
Discussion started by: asnandhakumar
6 Replies

8. Shell Programming and Scripting

Output block of lines in a file based on grep result

Hi I would appreciate your help with this. I have a output file from a command. It is broken based on initial of the users. Exmaple of iitials MN & SS. Under each section there is information pertaining to the user however each section can have different number of lines. MY challenge is to ... (5 Replies)
Discussion started by: mnassiri
5 Replies

9. UNIX for Dummies Questions & Answers

Grep? - using a file of terms to search another file when the information is on a different line

I have a flat file that looks like this, let's call it Chromosome_9.txt: FT /Gene_Name="Guanyl-Acetylase 9" FT /Gene_Number"36952" FT /Gene_Name="Endoplasmic Luciferase" FT /Gene_Number"36953" FT ... (4 Replies)
Discussion started by: Twinklefingers
4 Replies

10. Shell Programming and Scripting

Searching for exact match using grep

I am searching for an exact match on a value read from another file to lookup an email address in another file. The file being checked is called "contacts" and it has Act #, email address, and contact person. 1693;abc1693@yahoo.comt;Tommy D 6423;abc6423@yahoo.comt;Jim Doran... (2 Replies)
Discussion started by: ziggy6
2 Replies
SVK::Log::Filter::Grep(3)				User Contributed Perl Documentation				 SVK::Log::Filter::Grep(3)

SYNOPSIS
SVK::Log::Filter::Grep - search log messages for a given pattern DESCRIPTION
The Grep filter requires a single Perl pattern (regular expression) as its argument. The pattern is then applied to the svn:log property of each revision it receives. If the pattern matches, the revision is allowed to continue down the pipeline. If the pattern fails to match, the pipeline immediately skips to the next revision. The pattern is applied with the /i modifier (case insensitivity). If you want case-sensitivity or other modifications to the behavior of your pattern, you must use the "(?imsx-imsx)" extended pattern (see "perldoc perlre" for details). For example, to search for log messages that match exactly the characters "foo" you might use svk log --filter "grep (?-i)foo" However, to search for "foo" without regards for case, one might try svk log --filter "grep foo" The result of any capturing parentheses inside the pattern are not available. If demand dictates, the Grep filter could be modified to place the captured value somewhere in the stash for other filters to access. If the pattern contains a pipe character ('|'), it must be escaped by preceding it with a '' character. Otherwise, the portion of the pattern after the pipe character is interpreted as the name of a log filter. STASH
/PROPERTY MODIFICATIONS Grep leaves all properties and the stash intact. perl v5.10.0 2008-08-04 SVK::Log::Filter::Grep(3)
All times are GMT -4. The time now is 12:01 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy