Sponsored Content
Top Forums Shell Programming and Scripting HELP! PERL script to find matched pattern Post 302193993 by kimhuat on Monday 12th of May 2008 03:32:00 AM
Old 05-12-2008
Data 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 (
.trans_clk trans_clk_mux ),
.resetb resetb_mux ),
.app app_b ),
);

nitropack nitropack (
.trans_clk trans_clk_mux ),
.reseta reseta_mux ),
.app app_a ),
.data data_a ),
);

I really need your help for whoever know how to solve this problem.
Thank you!
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

perl - how do i find out if a file doesn't contain a pattern?

how do i check a file for a pattern and perform an action if it doesn't exist? i know how to search a file for a pattern. you just place it in an array like so. #!/usr/bin/perl my $data_file = "file.txt"; open DATA, "$data_file"; my @array_of_data = <DATA>; if ($_ =~ m/pattern/i) {... (4 Replies)
Discussion started by: mjays
4 Replies

2. Shell Programming and Scripting

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. #! /usr/bin/perl -s -wnl BEGIN { $pattern or warn"Usage: $0 -pattern='RE' \n" and exit 255;... (5 Replies)
Discussion started by: er_ashu
5 Replies

3. Shell Programming and Scripting

awk script to move a line after the matched pattern line

I have the following text format in a file which lists the question first and then 5 choices after that the explanantion and finally the answer. 1.The amount of time it takes for most of a worker’s occupational knowledge and skills to become obsolete has been declining because of the... (2 Replies)
Discussion started by: nanchil_guy
2 Replies

4. Shell Programming and Scripting

How to find the matched numbers between 2 text file using perl program??

hi dudes, I nee you kind assistance, I have to find the matched numbers from 2 text files and output of matched numbers should be in another text file.. I do have text files like this , for example File 1 787 665*5-p 5454 545-p 445-p 5454*-p File 2 5455 787 445-p 4356 2445 144 ... (3 Replies)
Discussion started by: sureshraj
3 Replies

5. 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

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

Insert certain field of matched pattern line above pattern

Hello every, I am stuck in a problem. I have file like this. I want to add the fifth field of the match pattern line above the lines starting with "# @D". The delimiter is "|" eg > # @D0.00016870300|0.05501020000|12876|12934|3||Qp||Pleistocene||"3 Qp Pleistocene"|Q # @P... (5 Replies)
Discussion started by: jyu3
5 Replies

8. Shell Programming and Scripting

How to use sed to search a particular pattern in a file backward after a pattern is matched.?

Hi, I have two files file1.txt and file2.txt. Please see the attachments. In file2.txt (which actually is a diff output between two versions of file1.txt.), I extract the pattern corresponding to 1172c1172. Now ,In file1.txt I have to search for this pattern 1172c1172 and if found, I have to... (9 Replies)
Discussion started by: saurabh kumar
9 Replies

9. 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

10. Shell Programming and Scripting

Find a matched pattern and perform comparison on numbers next to it

Hi, I have been trying to extract rows that match pattern "cov" with the value next to it to be > 3. The 'cov' pattern may appear either in $3 or $4 (if using ";" as field separator). Below is the example:- input file ... (7 Replies)
Discussion started by: bunny_merah19
7 Replies
CG(1)																	     CG(1)

NAME
cg - Recursively grep for a pattern and store it. SYNOPSIS
cg [ -l ] | [ [ -i ] pattern [ files ] ] DESCRIPTION
cg does a search though text files (usually source code) recursively for a pattern, storing matches and displaying the output in a human- readable fashion. It is intended to give some of the functionaly of AT&T's cscope(1) tool, with the advantages of simplicity and not being language-specific. The script will colorize output if configured as such. It is typically run with a Perl regular expression to search for. The search can be made case insensitive by using the -i option. A list of files may also be specified with an additional argument after the pattern. Put the files pattern in quotes to make it be matched by Perl rather than by the shell. Running the script with no arguments will recall the results of the previous search. After the search, entries found can be edited using the vg(1) script. The -l option shows the last log made. SOME EXAMPLES
cg - alone recalls the previous search results. cg -i pattern - search the default list of files for all files matching the pattern (and case-insensitively). cg pattern '*.c' - search recursively for pattern in all *.c files. This automatically converts '*' to '.*' and '.' to '.' for you and does a Perl pattern match on all files in the tree. cg pattern *.c - search through the shell-expanded list of *.c files, so not done recursively (in other words, only the files your shell pass to the script as arguments). cg -l - show the last log made. COMMAND-LINE OPTIONS -i Do a case-insensitive search. -l Show the last log made. -p Toggle the default pager option. cg has a bulit-in pager function, which can be enabled or disabled by default (in .cgvgrc). If the default is enabled, this option disables the pager; if the default is disabled, this option enables it. -P Force the built-in pager to be disabled. FILES
${HOME}/.cglast Log file of the last search. ${HOME}/.cgvgrc Per-user configuration file (if the defaults are not desireable). ${HOME}/.cgvg/* Log files in $HOSTNAME.shell_pid form with the log of the last search. SEE ALSO
vg(1), perl(1), find(1), grep(1), cscope(1) AUTHOR
cg was written by Joshua Uziel <uzi@uzix.org>. 13 Mar 2002 CG(1)
All times are GMT -4. The time now is 03:21 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy