Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: grep unique occurrences
Top Forums UNIX for Dummies Questions & Answers grep unique occurrences Post 302117916 by mz043 on Thursday 17th of May 2007 07:56:52 AM
Old 05-17-2007
grep unique occurrences
Hi,

How do i grep unique occurrences from a file.

I have a log file with multiple occurrences of 'foo' for instance. When i do:
grep foo, I get all the lines that contain foo.
Is there any way to get only one line for foo?

Example file:

Code:
foo at 09.01am Fri 11 May 2007
foo at 09.13am Fri 11 May 2007
foo at 09.17am Fri 11 May 2007
boo at 09.00am Fri 11 May 2007

when I do grep foo I get 3 lines. I only need one line (it doesn't matter which one). Is this possible?

Many thanks for your help.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Getting unique list of numbers using grep

Hi, I am going to fetch a list of numbers that starts with "0032" from a file with a format like the given below: " 0032459999 0032458888 0032457777 0032451111 0032452222 0032453333 0032459999 0032458888 0032457777 0032451111 0032452222 0032453333 " I want to get a unique... (6 Replies)
Discussion started by: tinku
6 Replies

2. Shell Programming and Scripting

grep for unique value

If i want to grep for a value in a file but display only unique value then which option can i use. ex: Values in the file IP <1.2.3.4> value <2> IP <1.2.3.4> value <2> IP <1.2.3.4> value <3> IP <1.2.3.5> value <1> i should get only the unique value (3 Replies)
Discussion started by: vls1210
3 Replies

3. UNIX for Dummies Questions & Answers

Grep Unique

Hello, I have a file with a list of car makes and specific information for each make. An example is: @Audi:Warranty @Audi:Pricing @Audi:Colors @Acura:Warranty @Acura:Pricing @Acura:Colors and so on through a bunch of makes. I need to make a list in a selection box of just one name of... (4 Replies)
Discussion started by: macbb1117
4 Replies

4. Homework & Coursework Questions

Du without directory and Grep for occurrences of a word

Assistance on work Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted! 1. The problem statement, all variables and given/known data: Files stored in ... (1 Reply)
Discussion started by: alindner
1 Replies

5. Shell Programming and Scripting

grep with date & unique output

alert.log has the entries with ORA-XXXX, .... Mon Sep 24 15:08:09 2012 WARNING: inbound connection timed out (ORA-3136) Mon Sep 24 15:08:09 2012 WARNING: inbound connection timed out (ORA-3136) Mon Sep 24 15:08:09 2012 WARNING: inbound connection timed out (ORA-3136) Mon Sep 24 15:15:01... (4 Replies)
Discussion started by: Daniel Gate
4 Replies

6. Shell Programming and Scripting

How to grep on unique id which has request and response on different lines?

Hi I want to find out those unique uids from the log file which have request and response. The log file format is as follows. This log has other irrelevant lines too but each uid should have request and reponse, I need those uids only 2013-04-03 10:51:01,808 INFO <?xml version="1.0"... (4 Replies)
Discussion started by: random_thoughts
4 Replies

7. Shell Programming and Scripting

GREP between last occurrences of two strings

Hi I have the server.log file as: Server Stopped ABC DEF GHI JKL Server Started MNO PQR STU Server Stopped VWX YZ ABC Server Started Server Stopped 123 456 789 (9 Replies)
Discussion started by: ankur328
9 Replies

8. UNIX for Dummies Questions & Answers

Grep unique 1st column

Hello, I'm trying to used awk but am new to this. I have a file like this: Bob is a good boy Bob is a strange person Bob is a good dancer Jane can party Jane is a good girl Jane is batty I'd like to get this: Bob is a good boy is a strange person is a good dancer Jane... (4 Replies)
Discussion started by: Billyjo
4 Replies

9. UNIX for Beginners Questions & Answers

Grep or awk a unique and specific word across many fields

Hi there, I have data with similar structure as this: CHR START-SNP END-SNP REF ALT PATIENT1 PATIENT2 PATIENT3 PATIENT4 chr1 69511 69511 A G homo hetero homo hetero chr2 69513 69513 T C . hetero homo hetero chr3 69814 69814 G C . . homo homo chr4 69815 69815 C A hetero . . hetero is... (10 Replies)
Discussion started by: daashti
10 Replies

10. Shell Programming and Scripting

How to strictly grep (with before and after args) for last N number of occurrences?

Here is my grep string to print only the last occurrence, with before and after lines. Note that the tail Argument is sum of B and A args + 1, so that it prints the data of only the last 1 match. Now I need to print last 2 such matches. I thought of doubling the tail arg like 5+5+1 (For -- line),... (2 Replies)
Discussion started by: samjna
2 Replies

LEARN ABOUT DEBIAN

ocamlwc

OCAMLWC(1)						      General Commands Manual							OCAMLWC(1)

NAME

       ocamlwc - count the lines of code and comments in OCaml sources

SYNOPSIS

       ocamlwc [options] [files]

DESCRIPTION

       ocamlwc	is  a program to count the number of lines of code and documentation in OCaml sources.	It assumes its input to be lexically well-
       formed.	If no files are given, then ocamlwc reads from stdin.

       The first column of the output lists the number of source lines of code, the second column the number of lines of  documentation,  and  the
       third the respective filename.  If ocamlwc acts on more than one file, then it prints a total in the last line.

OPTIONS

       -p     Print percentage of documentation (in an additional column after the filename).

       -c     Print only the code size, i.e., omit the documentation column.

       -e     (everything) Do not skip headers.  A header is the first comment in a file.

       -a     (all)  Do  not  skip generated files.  foo.ml is a generated file if one of foo.mll, foo.mly, or foo.ml4 is amongst the given files.
	      foo.mli is a generated file if foo.mly is amongst the given files.

       -h     Print short usage information.

AUTHOR

       ocamlwc was written by Jean-Christophe Filliatre <Jean-Christophe.Filliatre@lri.fr>.
       This manual page was written by Georg Neis <gn@oglaroon.de>.

								  January 2, 2007							OCAMLWC(1)
All times are GMT -4. The time now is 08:55 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy