how to get surrounding lines of my grep search?

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting how to get surrounding lines of my grep search?
# 1  
Old 09-05-2009
how to get surrounding lines of my grep search?


if I grep a file, sometimes I want to see as an eg 2 lines above and below my grep results.

how can this be done

# 2  
Old 09-05-2009
grep -B2 -A2

-B before
-A after
# 3  
Old 09-06-2009
which kind of grep support B and A option?
# 4  
Old 09-06-2009
let's say
grep -C2
# or
grep -2

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

How to use a grep search to search for a specific string within multiple directories?

Lets say I have a massive directory which is filled with other directories all filled with different c++ scripts and I want a listing of all the scripts that contain the string: "this string". Is there a way to use a grep search for that? I tried: grep -lr "this string" * but I do not... (3 Replies)
Discussion started by: Circuits
3 Replies

2. Shell Programming and Scripting

Grep pattern only and surrounding lines

Hello, I am trying to grep search a pattern and a line before it. cat input >record1 hello1hello2hellonhello3 >record2 helloohello1hello2hello3 When I use, grep with -o option and either of -A/B/C options, I still can't see lines before or after the pattern. But the exact pattern is... (5 Replies)
Discussion started by: jacobs.smith
5 Replies

3. Shell Programming and Scripting

Search pattern on logfile and search for day/dates and skip duplicate lines if any

Hi, I've written a script to search for an Oracle ORA- error on a log file, print that line and the .trc file associated with it as well as the dateline of when I assumed the error occured. In most it is the first dateline previous to the error. Unfortunately, this is not a fool proof script.... (2 Replies)
Discussion started by: newbie_01
2 Replies

4. Shell Programming and Scripting

Possible to grep string based on surrounding strings?

I was wondering if it was possible to grep a pattern based on the surround text. For example, if i have an input file like this: titleA titleB titlex titleC titleD titlex titleE And I want to grep "title" and save the results only if it is not followed with a "titlex". My output... (14 Replies)
Discussion started by: jl487
14 Replies

5. Shell Programming and Scripting

search and replace, when found, delete multiple lines, add new set of lines?

hey guys, I tried searching but most 'search and replace' questions are related to one liners. Say I have a file to be replaced that has the following: $ cat testing.txt TESTING AAA BBB CCC DDD EEE FFF GGG HHH ENDTESTING This is the input file: (3 Replies)
Discussion started by: DeuceLee
3 Replies

6. Shell Programming and Scripting

Perl XML, find matching condition and grep lines and put the lines somewhere else

Hi, my xml files looks something like this <Instance Name="New York"> <Description></Description> <Instance Name="A"> <Description></Description> <PropertyValue Key="false" Name="Building A" /> </Instance> <Instance Name="B"> ... (4 Replies)
Discussion started by: tententen
4 Replies

7. Shell Programming and Scripting

how to get surrounding lines of grep result

hi, if i have a file and i want to search for the word error using grep, i usually want to see the surrounding lines too as they contain info about the error. what would be a nice way to achieve this? thanks (6 Replies)
Discussion started by: JamesByars
6 Replies

8. UNIX for Dummies Questions & Answers

View all lines in grep search

I am trying to grep a file and I need to show the schedules that the grep belongs too. here is the command I am using and the result I am getting: $ fgrep -e 'SCALHOL' twsschedules EXCEPT SCALHOL -1 DAYS EXCEPT SCALHOL -1 DAYS EXCEPT SCALHOL -1 DAYS ... (1 Reply)
Discussion started by: wereyou
1 Replies

9. Shell Programming and Scripting

Surrounding a chunk of code by #ifdef and #endif

Hello the great gurus :) I'm quite new to this, so perhaps I'm asking a simple and trivial question (which is good, because you'll answer for sure :)))) Anyway. I have an amount of *.c files (about 100), and what I want to do, is to surround a specific function call with #ifdef and #endif. ... (6 Replies)
Discussion started by: xxxaxa
6 Replies

10. UNIX for Dummies Questions & Answers

How can you show lines surrounding a search string?

I would like to be able to grep (or some such thing) a search argument and then display the line plus the preceding 3 lines of the file and the following 3 lines of the file. Any ideas? Thanks in advance! :D (3 Replies)
Discussion started by: robster
3 Replies
Login or Register to Ask a Question