Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: print last matched pattern using perl
Top Forums Shell Programming and Scripting print last matched pattern using perl Post 302217400 by er_ashu on Tuesday 22nd of July 2008 05:50:39 PM
Old 07-22-2008
print last matched pattern using perl
Hi,

If there exist multiple pattern in a file, how can I find the last record matching the pattern through perl.

The below script searches for the pattern everywhere in an input file.

Code:
#! /usr/bin/perl -s -wnl

BEGIN {
$pattern or   
  warn"Usage: $0 -pattern='RE' [FILE1 ....]\n" and
exit 255;
}

/$pattern/ and print;


Regards
Ashu
Last edited by er_ashu; 07-22-2008 at 08:00 PM..
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

HELP! PERL script to find matched pattern

Hi all, I just learnt Perl and I encountered a problem in my current project. For a verilog file, i am required to write a PERL script that could match pattern to output nitrolink and nitropack. I wont know what name to grep except the pattern below. the verilog file: nitrolink nitrolink... (1 Reply)
Discussion started by: kimhuat
1 Replies

2. Shell Programming and Scripting

SED: delete and print the only exact matched pattern

I am really need help with the regular expression in SED. From input file, I need to extract lines that have the port number (sport or dport) as defined. The input file is something like this time=1209515280-1209515340 dst=192.168.133.202 src=208.70.8.23 bytes=2472 proto=6 sport=80 dport=1447... (6 Replies)
Discussion started by: new_buddy
6 Replies

3. Shell Programming and Scripting

How to print lines till till a pattern is matched in loop

Dear All I have a file like this 112534554 446538656 444695656 225696966 226569744 228787874 113536566 443533535 222564552 115464656 225445345 225533234 I want to cut the file into different parts where the first two columns are '11' . The first two columns will be either... (3 Replies)
Discussion started by: anoopvraj
3 Replies

4. Linux

Perl program to print previous set of lines once a pattern is matched

Hi all, I have a text data file. My aim here is to find line called *FIELD* AV for every record and print lines after that till *FIELD* RF. But here I want first 3 to four lines for very record as well. FIELD AV is some where in between for very record. SO I am not sure how to retrieve lines in... (2 Replies)
Discussion started by: kaav06
2 Replies

5. Shell Programming and Scripting

print the whole row in awk based on matched pattern

Hi, I need some help on how to print the whole data for unmatched pattern. i have 2 different files that need to be checked and print out the unmatched patterns into a new file. My sample data as follows:- File1.txt Id Num Activity Class Type 309 1.1 ... (5 Replies)
Discussion started by: redse171
5 Replies

6. Shell Programming and Scripting

Print only matched pattern in perl

Hi, I have script like below: #!/usr/local/bin/perl use strict; use warnings; while (<DATA>) { ( my ($s_id) = /^\d+\|(\d+?)\|/ ) ; if ( $s_id == 1 ){ s/^(.*\|)*.*ABC\.pi=(+|+)*.*ABC\.id=(\d+|+).*$/$1$2|$3/s; print "$1$2|$3\n"; (2 Replies)
Discussion started by: sol_nov
2 Replies

7. Shell Programming and Scripting

Print line between two patterns when a certain pattern matched

Hello Friends, I need to print lines in between two string when a keyword existed in those lines (keywords like exception, error, failed, not started etc). for example, input: .. Begin Edr ab12 ac13 ad14 bc23 exception occured bd24 cd34 dd44 ee55 ff66 End Edr (2 Replies)
Discussion started by: EAGL€
2 Replies

8. Shell Programming and Scripting

Regex: print matched line and exact pattern match

Hi experts, I have a file with regexes which is used for automatic searches on several files (40+ GB). To do some postprocessing with the grep result I need the matching line as well as the match itself. I know that the latter could be achieved with grep's -o option. But I'm not aware of a... (2 Replies)
Discussion started by: stresing
2 Replies

9. UNIX for Advanced & Expert Users

To print from the first line until pattern is matched

Hi I want to print the line until pattern is matched. I am using below code: sed -n '1,/pattern / p' file It is working fine for me , but its not working for exact match. sed -n '1,/^LAC$/ p' file Input: LACC FEGHRA 0 LACC FACAF 0 LACC DARA 0 LACC TALAC 0 LAC ILACTC 0... (8 Replies)
Discussion started by: Abhisrajput
8 Replies

10. UNIX for Beginners Questions & Answers

Find matched pattern and print all based on certain conditions

Hi, I am trying to extract data based on certain conditions. My sample input file as below:- lnc-2:1 OnePiece tra_law 500 688 1 . . g_id "R792.8417"# tra_law_id "R792.8417.1"# g_line "2.711647"# KM "8.723820"# lnc-2:1 OnePiece room 500 510 1 . . g_id "R792.8417"# tra_law_id "R792.8417.1"#... (7 Replies)
Discussion started by: bunny_merah19
7 Replies

LEARN ABOUT OPENDARWIN

fc-pattern

FC-PATTERN(1)															     FC-PATTERN(1)

NAME

       fc-pattern - parse and show pattern

SYNOPSIS

       fc-pattern [ -cdVh ]  [ --config ]  [ --default ]  [  [ -f format ]  [ --format format ]  ]  [ --version ]  [ --help ]

	[ pattern  [ element... ]   ]

DESCRIPTION

       fc-pattern  parses  pattern (empty pattern by default) and shows the parsed result.  If --config is given, config substitution is performed
       on the pattern before being displayed.  If --default is given, default substitution is performed on the pattern before being displayed.

       If any elements are specified, only those are printed.

OPTIONS

       This program follows the usual GNU command line syntax, with long options starting with two dashes (`-'). A summary of options is  included
       below.

       -c     Perform config substitution on pattern.

       -d     Perform default substitution on pattern.

       -f     Format output according to the format specifier format.

       -V     Show version of the program and exit.

       -h     Show summary of options.

       pattern
	      Parses and displays pattern (uses empty pattern by default).

       element
	      If set, the element property is displayed for parsed pattern.

SEE ALSO

       FcNameParse(3)  FcConfigSubstitute(3)  FcDefaultSubstitute(3)  FcPatternPrint(3)  FcPatternFormat(3)  fc-cat(1)	fc-cache(1) fc-list(1) fc-
       match(1) fc-query(1) fc-scan(1)

       The fontconfig user's guide, in HTML format: /usr/share/doc/fontconfig/fontconfig-user.html.

AUTHOR

       This manual page was updated by Behdad Esfahbod <behdad@behdad.org>.

								   Apr 20, 2010 						     FC-PATTERN(1)
All times are GMT -4. The time now is 07:01 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy