Sponsored Content
Top Forums Shell Programming and Scripting Searching for a pattern in a file... Post 302474625 by Chubler_XL on Wednesday 24th of November 2010 09:55:56 PM
Old 11-24-2010
Tried a few shorter versions that work for test data but fail in other situations:

Works as long as no duplicate entries in f1 or f2
Code:
awk -F\| 'A[$1]++' f1 f2

Works as long as no duplicate entries in f1
Code:
awk -F\| 'A[$1]++==(NR>=FNR)' f1 f2


Last edited by Chubler_XL; 11-24-2010 at 11:20 PM..
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

searching for a pattern in a file and forwarding result to another

Hi, I am trying to search through a file for a particular word, then once found, I want the search to carry on for another 30 lines and append all this to a new file. For example, I search for the word "test" in hello.txt: <--some code--> <--some code--> <--some code--> test <--some more... (7 Replies)
Discussion started by: ocelot
7 Replies

2. Shell Programming and Scripting

searching pattern in another file and print

Suppose u have a file 12 22 73 another file L22D SSS S12J LLL H77K PPP J25O LOP I73S lOP K99O PLO so output shud like S12J LLL L22D SSS I73S lOP Thanks (2 Replies)
Discussion started by: cdfd123
2 Replies

3. UNIX for Advanced & Expert Users

searching one pattern in file and also counting

Hi, everybody this is my pattern in a file thomson, nicolas 5-3871 Wong, Fred 4-4123 Jones, Thomas 1-4122 Salazar, Richard 5-2522 first name and last names of people fallowed by Tele. while i am searching for pattern first name begin with 'S'... (8 Replies)
Discussion started by: ksr.test
8 Replies

4. Shell Programming and Scripting

Searching words in a file containing a pattern

Hi all, I would like to print words in a file seperated by whitespaces containing a specific pattern like "=" e.g. I have a file1 containing strings like %cat file1 The= some= in wish= born <eof> .I want to display only those words containing = i.e The= , some=,wish= ... (5 Replies)
Discussion started by: sree_123
5 Replies

5. Shell Programming and Scripting

Searching a pattern in file and deleting th ewhole line containing the pattern

Hi All, Please can someone assist in the script I have made that searches a pattern in a file and delete the whole line containing the pattern. #!bin/sh # The pattern that user want to add to the files echo "Enter the pattern of the redirect" read value # check if the user has... (1 Reply)
Discussion started by: Shazin
1 Replies

6. Shell Programming and Scripting

Searching a pattern in a file.

Hi Guys, I am writing a shell script to extract only the error message from a log file. I am having difficulty in searching the highlighted text in the below code. <runtimeinfo datetime="Sun Apr 04 20:02:52 EDT 2008" docid="" source="RAWDATA" event="ERROR"... (2 Replies)
Discussion started by: prash1986
2 Replies

7. UNIX for Dummies Questions & Answers

Searching the date pattern in a file

Hi, I would like to search the pattern based on the date like "2010/08/15". I tried using / in the file giving /<<pattern>>. when i tried this it turns to /2010/+8, but not going to the pattern what ever i want. This is how the data in the file. INFO | jvm 1 | 2010/05/26 13:30:33... (5 Replies)
Discussion started by: venkatesht
5 Replies

8. Shell Programming and Scripting

Remove the footer from a flat file by searching a pattern

Hi, I have more than 30,000 records in a flat file. I want to remove footer from the file by searching a string pattern for the footer. Example.... let the flat file test.dat contains below records. record1 record2 record3 .. .. .. record31000 Total records 31000 I want to remove the... (6 Replies)
Discussion started by: gani_85
6 Replies

9. UNIX for Dummies Questions & Answers

Searching for a pattern from filenames stored in a file

Hi, I have got some 10 filenames stored in a file or displayed in the console as a result of some query i made.. Now I need to open each of these files and search for a pattern in these 10 files.. Can someone help me with this? Thanks, Jean (9 Replies)
Discussion started by: jeanjkj
9 Replies

10. Shell Programming and Scripting

Searching the file of below pattern through perl script from different location

Hi All, I am creating a small per script but I am getting the error "Unable to open file because No such file or directory".My code is below.I am trying to go into the below location so using chdir and then seraching the log files of below pattern. #!/usr/bin/perl -w chdir... (3 Replies)
Discussion started by: anuragpgtgerman
3 Replies
YESTERDAY(1)						      General Commands Manual						      YESTERDAY(1)

NAME
yesterday - print file names from the dump SYNOPSIS
yesterday [ -c ] [ -date ] files ... DESCRIPTION
Yesterday prints the names of the files from the most recent dump. Since dumps are done early in the morning, yesterday's files are really in today's dump. For example, if today is March 17, 1992, yesterday /adm/users prints /n/dump/1992/0317/adm/users In fact, the implementation is to select the most recent dump in the current year, so the dump selected may not be from today. With option -c, yesterday copies the dump file to the current directory. The date option selects other day's dumps, with a format of 2, 4, 6, or 8 digits of the form dd, mmdd, yymmdd, or yyyymmdd. Yesterday does not guarantee that the string it prints represents an existing file. EXAMPLES
Back up to yesterday's MIPS binary of vc: cd /mips/bin yesterday -c vc Temporarily back up to March 1's MIPS C library to see if a program runs correctly when loaded with it: bind `{yesterday -0301 /mips/lib/libc.a} /mips/lib/libc.a rm v.out mk v.out FILES
/n/dump SOURCE
/rc/bin/yesterday SEE ALSO
fs(4) BUGS
It's hard to use this command without singing. YESTERDAY(1)
All times are GMT -4. The time now is 11:18 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy