Sponsored Content
Top Forums Shell Programming and Scripting Using grep and a parameter file to return unique values Post 302893597 by apmcd47 on Thursday 20th of March 2014 05:19:16 AM
Old 03-20-2014
Your first problem is that you need to match the patterns in your pattern file with the second field. You cannot just use grep -f list.txt. You really need to use awk or perl. You can then pattern-match on the two fields you are interested in without a stray 254=47587 in, say, the last field, matching your patterns file.

Something I was not sure about. Are you after the first instance of 4=475 and 3078= AND the first instance of 4=476 and 3078= etc etc rather than the first instance of ANY 4=xxx and 3078=? In which case you will have to loop through your patterns file anyway.

I am not going to offer any code because I don't really know awk and my perl is rusty. Good luck

Andrew
This User Gave Thanks to apmcd47 For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Getting Unique values in a file

Hi, I have a file like this: Some_String_Here 123 123 123 321 321 321 3432 3221 557 886 321 321 I would like to find only the unique values in the files and get the following output: Some_String_Here 123 321 3432 3221 557 886 I am trying to get this done using awk. Can someone please... (5 Replies)
Discussion started by: Legend986
5 Replies

2. Shell Programming and Scripting

Unique values from a Terabyte File

Hi, I have been dealing with a files only a few gigs until now and was able to get out by using the sort utility. But now, I have a terabyte file which I want to filter out unique values from. I have a server having 8 processor and 16GB RAM with a 5 TB hdd. Is it worthwhile trying to use... (6 Replies)
Discussion started by: Legend986
6 Replies

3. UNIX Desktop Questions & Answers

Fetching unique values from file

After giving grep -A4 "feature 1," <file name> I have extracted the following text feature 1, subfeat 2, type 1, subtype 5, dump '30352f30312f323030392031313a33303a3337'H -- "05/01/2009 11:30:37" -- -- ... (1 Reply)
Discussion started by: shivi707
1 Replies

4. Shell Programming and Scripting

Comparing 2 files and return the unique lines in first file

Hi, I have 2 files file1 ******** 01-05-09|java.xls| 02-05-08|c.txt| 08-01-09|perl.txt| 01-01-09|oracle.txt| ******** file2 ******** 01-02-09|windows.xls| 02-05-08|c.txt| 01-05-09|java.xls| 08-02-09|perl.txt| 01-01-09|oracle.txt| ******** (8 Replies)
Discussion started by: shekhar_v4
8 Replies

5. UNIX for Dummies Questions & Answers

Extract Unique Values from file

Hello all, I have a file with following sample data 2009-08-26 05:32:01.65 spid5 Process ID 86:214 owns resources that are blocking processes on Scheduler 0. 2009-08-26 05:32:01.65 spid5 Process ID 86:214 owns resources that are blocking processes on Scheduler 0. 2009-08-26... (5 Replies)
Discussion started by: simonsimon
5 Replies

6. Shell Programming and Scripting

return a list of unique values of a column from csv format file

Hi all, I have a huge csv file with the following format of data, Num SNPs, 549997 Total SNPs,555352 Num Samples, 157 SNP, SampleID, Allele1, Allele2 A001,AB1,A,A A002,AB1,A,A A003,AB1,A,A ... ... ... I would like to write out a list of unique SNP (column 1). Could you... (3 Replies)
Discussion started by: phoeberunner
3 Replies

7. Shell Programming and Scripting

How to count Unique Values from a file.

Hi I have the following info in a file - <Cell id="25D"/> <Cell id="26A"/> <Cell id="26B"/> <Cell id="26C"/> <Cell id="27A"/> <Cell id="27B"/> <Cell id="27C"/> <Cell id="28A"/> I would like to know how would you go about counting all... (4 Replies)
Discussion started by: Prega
4 Replies

8. Shell Programming and Scripting

compare 2 files and return unique lines in each file (based on condition)

hi my problem is little complicated one. i have 2 files which appear like this file 1 abbsss:aa:22:34:as akl abc 1234 mkilll:as:ss:23:qs asc abc 0987 mlopii:cd:wq:24:as asd abc 7866 file2 lkoaa:as:24:32:sa alk abc 3245 lkmo:as:34:43:qs qsa abc 0987 kloia:ds:45:56:sa acq abc 7805 i... (5 Replies)
Discussion started by: anurupa777
5 Replies

9. UNIX for Dummies Questions & Answers

Grep to find matching patern and return unique values

Request: grep to find given matching patern and return unique values, eliminate the duplicate values I have to retrieve the unique folder on the below file contents like; /app/oracle/build_lib/pkg320.0_20120927 /app/oracle/build_lib/pkg320.0_20121004_prof... (5 Replies)
Discussion started by: Siva SQL
5 Replies

10. Shell Programming and Scripting

Extracting unique values of a column from a feed file

Hi Folks, I have the below feed file named abc1.txt in which you can see there is a title and below is the respective values in the rows and it is completely pipe delimited file ,. ... (4 Replies)
Discussion started by: punpun66
4 Replies
ZGREP(1)						    BSD General Commands Manual 						  ZGREP(1)

NAME
zgrep, zegrep, zfgrep -- print lines matching a pattern in gzip-compressed files SYNOPSIS
zgrep [grep-flags] [--] pattern [files ...] zegrep [grep-flags] [--] pattern [file ...] zfgrep [grep-flags] [--] pattern [file ...] DESCRIPTION
zgrep runs grep(1) on files or stdin, if no files argument is given, after decompressing them with zcat(1). The grep-flags and pattern arguments are passed on to grep(1). If an -e flag is found in the grep-flags, zgrep will not look for a pattern argument. zegrep calls egrep(1), while zfgrep calls fgrep(1). EXIT STATUS
In case of missing arguments or missing pattern, 1 will be returned, otherwise 0. SEE ALSO
egrep(1), fgrep(1), grep(1), gzip(1), zcat(1) AUTHORS
Thomas Klausner <wiz@NetBSD.org> BSD
December 28, 2003 BSD
All times are GMT -4. The time now is 04:52 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy