12-07-2006
grep and display few lines before and after
Hi
is there a way in grep to display few lines before and after the pattern??
I tried options A and B and after-context and before-context. But they don't work on Solaris platform.
please advise.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hey Guys,
Wondering if there is a way to do the following
I have a file called test.txt
abc
def
abc
abc
def
I have a pattern file called pattern.txt containing the following
abc
def
I want to do a count, but have it display the count value preceeding each line like grep -n (2 Replies)
Discussion started by: Jerrad
2 Replies
2. UNIX for Dummies Questions & Answers
I have a file from which I need to collect lines to another file. I know how to use 'grep' for this, but I don't know how to do when I wan't several lines after the search word, and the amount of lines I need varies from case to case.
The file I search in looks something like this:
>8534734... (9 Replies)
Discussion started by: Draken
9 Replies
3. UNIX for Dummies Questions & Answers
Hello,
How do I use grep to find a pattern in a list of file and then display 5 lines after the pattern is matched
Eg:
I want to match the string GetPresentCode in all files in a folder and then see 4 lines following this match. I am not sure if grep is what should be used to achieve. Thanks!... (3 Replies)
Discussion started by: cv_pan
3 Replies
4. Shell Programming and Scripting
I have to grep on a few words in a file and then display the line containing those words and the line above it.
For ex -
File1.txt contains...
abc xyz abc
This is a test
Test successful
abc xyz abc
Just a test
Test successful
I find the words 'Test successful' in the file... (6 Replies)
Discussion started by: user7617
6 Replies
5. UNIX for Dummies Questions & Answers
Hello everyone.
I would like to know if I can use grep or zgrep to search for a particular pattern then print the x number of lines after the pattern was found.
Lets say for example a pattern was found on line 3, I wanted the output to show lines 3, 4 and 5.
Thanks! (10 Replies)
Discussion started by: khestoi
10 Replies
6. Shell Programming and Scripting
Hi,
I wanted to grep string "ERROR" and "WORNING" after last occurrence of String "Starting" only and wanted to display two lines after searched ERROR and WORNING string and one line before. I have following cronjob log file "errorlog" file and I have written the code for same in Unix as below... (17 Replies)
Discussion started by: nes
17 Replies
7. Shell Programming and Scripting
Hi,
Need help to grep the following from a file x. I just want to grep exact match not lines and not partial word.
CONFSUCCESS
CONFFAIL
CONFPARTIALSUCCESS
>cat x
xczxczxczc zczczcxx CONFSUCCESS czczczcczc
czxxczxzxczcczc CONFFAIL xczxczcxcczczc
zczczczcz CONFPARTIALSUCCESS czczxcxzc
... (4 Replies)
Discussion started by: rajeshwebspere
4 Replies
8. Shell Programming and Scripting
Hi I need to grep for a patter and display all lines below the pattern.
For ex: say my file has the below lines
file1
file2
file3
file4
file5
I NEED to grep for patter file3 and display all lines below the pattern. do we have an option to get this data. Let me know if you require... (5 Replies)
Discussion started by: venkidhadha
5 Replies
9. Shell Programming and Scripting
Hi guys,
I have a log file that generates multiple logs about a query.
<query time='2016-04-13 13:01:50.825'>
<PagingRequestHandler>
<Before>brand:vmu</Before>
<After>brand:vmu</After>
</PagingRequestHandler>
<GroupDeviceFilterHandler>
<Before>brand:vmu</Before>
... (3 Replies)
Discussion started by: Junaid Subhani
3 Replies
10. Shell Programming and Scripting
hi,
I have a log file with data for more than 3 years, i want only the rows for the year 2017, say for example.
My file has the data like this
08-OCT-2015 11:17:35 AAA, BBBB
08-OCT-2017 11:17:35 AAA,Bdfdfd,dfdfd,dfd
08-Nov-2017 11:17:35 AAA,Bdfdfd,dfdfd,deree
i want the rows... (2 Replies)
Discussion started by: skoshekay
2 Replies
GREP(1) General Commands Manual GREP(1)
NAME
grep - search a file for lines containing a given pattern
SYNOPSIS
grep [-elnsv] pattern [file] ...
OPTIONS
-e -e pattern is the same as pattern
-c Print a count of lines matched
-i Ignore case
-l Print file names, no lines
-n Print line numbers
-s Status only, no printed output
-v Select lines that do not match
EXAMPLES
grep mouse file # Find lines in file containing mouse
grep [0-9] file # Print lines containing a digit
DESCRIPTION
Grep searches one or more files (by default, stdin) and selects out all the lines that match the pattern. All the regular expressions
accepted by ed and mined are allowed. In addition, + can be used instead of * to mean 1 or more occurrences, ? can be used to mean 0 or 1
occurrences, and | can be used between two regular expressions to mean either one of them. Parentheses can be used for grouping. If a
match is found, exit status 0 is returned. If no match is found, exit status 1 is returned. If an error is detected, exit status 2 is
returned.
SEE ALSO
cgrep(1), fgrep(1), sed(1), awk(9).
GREP(1)