Sponsored Content
Top Forums Shell Programming and Scripting Grep values on alternate lines Post 302831651 by bartus11 on Thursday 11th of July 2013 11:11:58 AM
Old 07-11-2013
Try:
Code:
awk -F"|" '$1!=a[$2]&&a[$2]{print b[$2];print}{a[$2]=$1;b[$2]=$0}' file

This User Gave Thanks to bartus11 For This Post:
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

alternate lines from two files

A basic request two files want to combine them but on alternate lines (1 Reply)
Discussion started by: SummitElse
1 Replies

2. Shell Programming and Scripting

alternate lines

Hi, I'm new to Unix. I want to read the all the lines from a text file and write the alternate lines into another file. Please give me a shell script solution. file1 ----- one two three four five six seven newfile(it should contain the alternate lines from the file1) ------- one... (6 Replies)
Discussion started by: pstanand
6 Replies

3. Shell Programming and Scripting

alternate for "grep -vf" command

I have been using grep for removing lines of a particular pattern from a long file in the following way grep -vf Exclude_Lines File1 > File2 But grep seems to have some problems because sometimes it does the job, sometimes it does not....I have seen AWK is more powerful.. Can the same thing... (5 Replies)
Discussion started by: ananyob
5 Replies

4. Shell Programming and Scripting

reading alternate lines of a file

hi, i have 2 files. file1: 1 2 3 4 5 6 file2: a b c d e f g h i (5 Replies)
Discussion started by: vidyaj
5 Replies

5. Shell Programming and Scripting

Perl XML, find matching condition and grep lines and put the lines somewhere else

Hi, my xml files looks something like this <Instance Name="New York"> <Description></Description> <Instance Name="A"> <Description></Description> <PropertyValue Key="false" Name="Building A" /> </Instance> <Instance Name="B"> ... (4 Replies)
Discussion started by: tententen
4 Replies

6. Shell Programming and Scripting

Insert string in alternate lines

Hi All, In continuation of my previous thread 'Add text at the end of line conditionally', I need to further modfiy the file after adding text at the end of the line. Now, I need to add a fixed charater string at alternate lines starting from first line using awk or sed.My file is now as below:... (10 Replies)
Discussion started by: angshuman
10 Replies

7. Shell Programming and Scripting

Grep values from different lines

Hello, I have a log file with many lines and I want to grep pcific values from spcific lines, I'm not sure if it is possible or not Sample 16-11-11 19:54:13:INFO:Connection to device ip 20.10.11.23 took 0 16-11-11 19:54:13:FINE:Sending request. 16-11-11 19:54:13:INFO:Received response from... (3 Replies)
Discussion started by: roby2411
3 Replies

8. Programming

Perl : joining alternate lines

Hi, I need to join every alternate line in a file for eg:input file $ cat abc abc def ghi jkloutput abc def ghi jklcode i wrote for this $ cat add_line.pl #!/usr/bin/perl -w my $count=1; #my $line=undef; my @mem_line; my $i=0; my $x=0; (2 Replies)
Discussion started by: sam05121988
2 Replies

9. Shell Programming and Scripting

Process alternate lines in awk/sed/perl

hi.. i have a fasta file with the following format >sequence1 CCGGTTTTCGATTTGGTTTGACT >sequence2 AAAGTGCCGCCAGGTTTTGAGTGT >sequence3 AGTGCCGCAGAGTTTGTAGTGT Now, i want to read alternate line and add "GGGGGGGGGGG" to end of every sequence Desired output: >sequence1... (4 Replies)
Discussion started by: empyrean
4 Replies

10. Shell Programming and Scripting

Comparing alternate lines of code

Hi gents, Have only a passing familiarity with linux/shell at this point, so please forgive simple question. I have text files that have lines something like the following: a b c d d d e f e f e f a b (6 Replies)
Discussion started by: cabled
6 Replies
Locale::Codes::LangExt(3pm)				 Perl Programmers Reference Guide			       Locale::Codes::LangExt(3pm)

NAME
Locale::Codes::LangExt - standard codes for language extension identification SYNOPSIS
use Locale::Codes::LangExt; $lext = code2langext('acm'); # $lext gets 'Mesopotamian Arabic' $code = langext2code('Mesopotamian Arabic'); # $code gets 'acm' @codes = all_langext_codes(); @names = all_langext_names(); DESCRIPTION
The "Locale::Codes::LangExt" module provides access to standard codes used for identifying language extensions, such as those as defined in the IANA language registry. Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default IANA language registry codes will be used. SUPPORTED CODE SETS
There are several different code sets you can use for identifying language extensions. A code set may be specified using either a name, or a constant that is automatically exported by this module. For example, the two are equivalent: $lext = code2langext('acm','alpha'); $lext = code2langext('acm',LOCALE_LANGEXT_ALPHA); The codesets currently supported are: alpha This is the set of three-letter (lowercase) codes from the IANA language registry, such as 'acm' for Mesopotamian Arabic. This is the default code set. ROUTINES
code2langext ( CODE [,CODESET] ) langext2code ( NAME [,CODESET] ) langext_code2code ( CODE ,CODESET ,CODESET2 ) all_langext_codes ( [CODESET] ) all_langext_names ( [CODESET] ) Locale::Codes::LangExt::rename_langext ( CODE ,NEW_NAME [,CODESET] ) Locale::Codes::LangExt::add_langext ( CODE ,NAME [,CODESET] ) Locale::Codes::LangExt::delete_langext ( CODE [,CODESET] ) Locale::Codes::LangExt::add_langext_alias ( NAME ,NEW_NAME ) Locale::Codes::LangExt::delete_langext_alias ( NAME ) Locale::Codes::LangExt::rename_langext_code ( CODE ,NEW_CODE [,CODESET] ) Locale::Codes::LangExt::add_langext_code_alias ( CODE ,NEW_CODE [,CODESET] ) Locale::Codes::LangExt::delete_langext_code_alias ( CODE [,CODESET] ) These routines are all documented in the Locale::Codes::API man page. SEE ALSO
Locale::Codes The Locale-Codes distribution. Locale::Codes::API The list of functions supported by this module. http://www.iana.org/assignments/language-subtag-registry The IANA language subtag registry. AUTHOR
See Locale::Codes for full author history. Currently maintained by Sullivan Beck (sbeck@cpan.org). COPYRIGHT
Copyright (c) 2011-2013 Sullivan Beck This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. perl v5.18.2 2013-11-04 Locale::Codes::LangExt(3pm)
All times are GMT -4. The time now is 02:29 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy