Sponsored Content
Top Forums Shell Programming and Scripting Remove lines with duplicate first field Post 302608563 by agama on Saturday 17th of March 2012 11:24:48 PM
Old 03-18-2012
Per the description:

Code:
awk ' /^2012 / { print; x = "";  next; } $1 != x { x = $1; print; } ' input-file >output-file

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Remove Duplicate Lines in File

I am doing KSH script to remove duplicate lines in a file. Let say the file has format below. FileA 1253-6856 3101-4011 1827-1356 1822-1157 1822-1157 1000-1410 1000-1410 1822-1231 1822-1231 3101-4011 1822-1157 1822-1231 and I want to simply it with no duplicate line as file... (5 Replies)
Discussion started by: Teh Tiack Ein
5 Replies

2. Shell Programming and Scripting

how to remove duplicate lines

I have following file content (3 fields each line): 23 888 10.0.0.1 dfh 787 10.0.0.2 dssf dgfas 10.0.0.3 dsgas dg 10.0.0.4 df dasa 10.0.0.5 df dag 10.0.0.5 dfd dfdas 10.0.0.5 dfd dfd 10.0.0.6 daf nfd 10.0.0.6 ... as can be seen, that the third field is ip address and sorted. but... (3 Replies)
Discussion started by: fredao
3 Replies

3. Shell Programming and Scripting

Remove duplicate lines (the first matching line by field criteria)

Hello to all, I have this file 2002 1 23 0 0 2435.60 131.70 5.60 20.99 0.89 0.00 285.80 2303.90 2002 1 23 15 0 2436.60 132.90 6.45 21.19 1.03 0.00 285.80 2303.70 2002 1 23 ... (6 Replies)
Discussion started by: joggdial3000
6 Replies

4. Shell Programming and Scripting

Remove duplicate lines

Hi, I have a huge file which is about 50GB. There are many lines. The file format likes 21 rs885550 0 9887804 C C T C C C C C C C 21 rs210498 0 9928860 0 0 C C 0 0 0 0 0 0 21 rs303304 0 9941889 A A A A A A A A A A 22 rs303304 0 9941890 0 A A A A A A A A A The question is that there are a few... (4 Replies)
Discussion started by: zhshqzyc
4 Replies

5. Shell Programming and Scripting

Remove duplicate lines based on field and sort

I have a csv file that I would like to remove duplicate lines based on field 1 and sort. I don't care about any of the other fields but I still wanna keep there data intact. I was thinking I could do something like this but I have no idea how to print the full line with this. Please show any method... (8 Replies)
Discussion started by: cokedude
8 Replies

6. Shell Programming and Scripting

Remove duplicate value based on two field $4 and $5

Hi All, i have input file like below... CA009156;20091003;M;AWBKCA72;123;;CANADIAN WESTERN BANK;EDMONTON;;2300, 10303, JASPER AVENUE;;T5J 3X6;; CA009156;20091003;M;AWBKCA72;321;;CANADIAN WESTERN BANK;EDMONTON;;2300, 10303, JASPER AVENUE;;T5J 3X6;; CA009156;20091003;M;AWBKCA72;231;;CANADIAN... (2 Replies)
Discussion started by: mohan sharma
2 Replies

7. UNIX for Dummies Questions & Answers

awk to sum column field from duplicate row/lines

Hello, I am new to Linux environment , I working on Linux script which should send auto email based on the specific condition from log file. Below is the sample log file Name m/c usage abc xxx 10 abc xxx 20 abc xxx 5 xyz ... (6 Replies)
Discussion started by: asjaiswal
6 Replies

8. UNIX for Dummies Questions & Answers

Remove Duplicate Lines

Hi I need this output. Thanks. Input: TAZ YET FOO FOO VAK TAZ BAR Output: YET VAK BAR (10 Replies)
Discussion started by: tara123
10 Replies

9. UNIX for Dummies Questions & Answers

Using awk to remove duplicate line if field is empty

Hi all, I've got a file that has 12 fields. I've merged 2 files and there will be some duplicates in the following: FILE: 1. ABC, 12345, TEST1, BILLING, GV, 20/10/2012, C, 8, 100, AA, TT, 100 2. ABC, 12345, TEST1, BILLING, GV, 20/10/2012, C, 8, 100, AA, TT, (EMPTY) 3. CDC, 54321, TEST3,... (4 Replies)
Discussion started by: tugar
4 Replies

10. Shell Programming and Scripting

How to remove duplicate lines?

Hi All, I am storing the result in the variable result_text using the below code. result_text=$(printf "$result_text\t\n$name") The result_text is having the below text. Which is having duplicate lines. file and time for the interval 03:30 - 03:45 file and time for the interval 03:30 - 03:45 ... (4 Replies)
Discussion started by: nalu
4 Replies
POD2USAGE(1)						 Perl Programmers Reference Guide					      POD2USAGE(1)

NAME
pod2usage - print usage messages from embedded pod docs in files SYNOPSIS
pod2usage [-help] [-man] [-exit exitval] [-output outfile] [-verbose level] [-pathlist dirlist] file OPTIONS AND ARGUMENTS
-help Print a brief help message and exit. -man Print this command's manual page and exit. -exit exitval The exit status value to return. -output outfile The output file to print to. If the special names "-" or ">&1" or ">&STDOUT" are used then standard output is used. If ">&2" or ">&STDERR" is used then standard error is used. -verbose level The desired level of verbosity to use: 1 : print SYNOPSIS only 2 : print SYNOPSIS sections and any OPTIONS/ARGUMENTS sections 3 : print the entire manpage (similar to running pod2text) -pathlist dirlist Specifies one or more directories to search for the input file if it was not supplied with an absolute path. Each directory path in the given list should be separated by a ':' on Unix (';' on MSWin32 and DOS). file The pathname of a file containing pod documentation to be output in usage mesage format (defaults to standard input). DESCRIPTION
pod2usage will read the given input file looking for pod documentation and will print the corresponding usage message. If no input file is specifed than standard input is read. pod2usage invokes the pod2usage() function in the Pod::Usage module. Please see "pod2usage()" in Pod::Usage. SEE ALSO
Pod::Usage, pod2text(1) AUTHOR
Please report bugs using <http://rt.cpan.org>. Brad Appleton <bradapp@enteract.com> Based on code for pod2text(1) written by Tom Christiansen <tchrist@mox.perl.com> perl v5.8.9 2009-04-13 POD2USAGE(1)
All times are GMT -4. The time now is 04:09 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy