Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Need help to write a Perl script
Top Forums Shell Programming and Scripting Need help to write a Perl script Post 302177753 by era on Sunday 23rd of March 2008 06:27:15 AM
Old 03-23-2008
The logic is a bit hard to follow. Could you post a sample input and sample output for that?

I would start by refactoring your script based on the following observations;

* the "if" has only an "else" clause. It would seem more natural to invert the test and have only a "then" clause.

* Perl can easily convert hex to binary, and generally between different number bases, so that part of the script is easy to simplify. But you are not using the value of $binary anywhere?

Code:
open(IN, $file)|| die("Could not open file: $!");
while(<IN>) {
 unless (/^["*]/) {
   @fld = split(/,/, $_);
   if( $fld[3] == 1 ){
          print $_;
          $binary1 = HexToBinary(substr($fld[0],0,2));
          print $_;
	  # do you mean
	  # $first = $binary1 . substr($fld[0],2);
          # shift @fld
          # print join ("," $first, @fld)
          # ?
    }
  }
}
sub HexToBinary{
    my $hex = $h;
    return sprintf "%b", hex($h);
}

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Should I write a PERL Script or Shell Script?

Hello, I have done some BASIC shell scripting/PERL scripting before so I am familiar with the languages. I am not really sure which one would lend itself better to the application I have to write. I am required to scan the message logs for possible break in attempts. If I use shell scripting... (2 Replies)
Discussion started by: mojoman
2 Replies

2. Shell Programming and Scripting

write a perl script or kornshell reading a two files and outputting to comma format

Hello Can someone help me to write a perl script or kornshell reading a two files and outputting to comma format. Here is the two files listofdisks.txt id, diskname, diskgroup, diskisze(GB), FC 1, CN34, GRP1, 30, FC_CN34 2, CN67, GRP5, 19, 4, VD1, GRP4, 23, FC_VD1 6, CF_D1, ... (0 Replies)
Discussion started by: deiow
0 Replies

3. Shell Programming and Scripting

Help need to write a script on column separation for syslog output in perl

HI Pros, I have a issue.I need to write a script to parse the logs got from syslog server and update the same in my database.I need the following output.I donot know perl and I heard it very easy to write in perl I have the sample log I need each column seperated by commas and all equals... (0 Replies)
Discussion started by: iron_michael86
0 Replies

4. Shell Programming and Scripting

perl script to find, write, repeat...

I am a novice writing perl scripts so I'd appreciate any help you guys can offer. I have a list of 100 words in a file (words.txt) and I need to find them in a second file (data.txt). Whenever one of these words is found I need to write that line to a third file (out.txt) and then continue... (1 Reply)
Discussion started by: tgamble
1 Replies

5. Shell Programming and Scripting

perl script to check read/write/execute permission for 'others'

I want to check access rights permissions not for 'user', not for 'group', but for 'others'. I want to do it by system command in which i want to use 'ls -l' and 'awk' command. I have written the following program : #!/usr/bin/local/perl #include <stdlib.h> system ("ls -l | awk... (1 Reply)
Discussion started by: shubhamsachdeva
1 Replies

6. Shell Programming and Scripting

How to write a update query in perl script?

can any one suggest me on how to write a update query in perl script for Oracle database and also tell me abt how we can write a code for sending mails with report as attachment to appropriate persons? (1 Reply)
Discussion started by: Ramesh V Kumar
1 Replies

7. Shell Programming and Scripting

Need a perl script to read and write the data

Hi, I have on Designdocument in that information is stored with in tabular format.I need Perlscript to read and write the datausing perl script? Regards, Ravi (0 Replies)
Discussion started by: toravi.pentaho
0 Replies

8. Shell Programming and Scripting

Need a UNIX/perl script to read and write the data

Hi, I have on Designdocument in that information is stored with in tabular format.I need Perl/unix script to read and write the data using perl script? Regards, Ravi (4 Replies)
Discussion started by: toravi.pentaho
4 Replies

9. Shell Programming and Scripting

Perl script to create/write into spreadsheet

Hi, I need help in debug following script. can somebody help....!!! #!/usr/bin/perl -w use strict; use Spreadsheet::WriteExcel; # Create a new workbook called simple.xls and add a worksheet. my $workbook = Spreadsheet::WriteExcel->new('simple.xls'); my $worksheet =... (1 Reply)
Discussion started by: chettyravi
1 Replies

10. Shell Programming and Scripting

How to write Perl Script to Get MQ Queue Depth?

Hi , I got the following script from internet to display queue depth using Perl Script. However, when I execute it , im getting following error. Can anyone shed light on what is going wrong? #!/usr/bin/perl ## 07/23/01 ## Depth Inquiry sample program. ## Arguments: ## Connects to... (11 Replies)
Discussion started by: srkmish
11 Replies

LEARN ABOUT REDHAT

findbin

FindBin(3pm)						 Perl Programmers Reference Guide					      FindBin(3pm)

NAME

       FindBin - Locate directory of original perl script

SYNOPSIS

	use FindBin;
	use lib "$FindBin::Bin/../lib";

	or

	use FindBin qw($Bin);
	use lib "$Bin/../lib";

DESCRIPTION

       Locates the full path to the script bin directory to allow the use of paths relative to the bin directory.

       This allows a user to setup a directory tree for some software with directories <root>/bin and <root>/lib and then the above example will
       allow the use of modules in the lib directory without knowing where the software tree is installed.

       If perl is invoked using the -e option or the perl script is read from "STDIN" then FindBin sets both $Bin and $RealBin to the current
       directory.

EXPORTABLE VARIABLES

	$Bin	     - path to bin directory from where script was invoked
	$Script      - basename of script from which perl was invoked
	$RealBin     - $Bin with all links resolved
	$RealScript  - $Script with all links resolved

KNOWN ISSUES

       If there are two modules using "FindBin" from different directories under the same interpreter, this won't work. Since "FindBin" uses
       "BEGIN" block, it'll be executed only once, and only the first caller will get it right. This is a problem under mod_perl and other persis-
       tent Perl environments, where you shouldn't use this module. Which also means that you should avoid using "FindBin" in modules that you
       plan to put on CPAN. The only way to make sure that "FindBin" will work is to force the "BEGIN" block to be executed again:

	 delete $INC{'FindBin.pm'};
	 require FindBin;

KNOWN BUGS

       If perl is invoked as

	  perl filename

       and filename does not have executable rights and a program called filename exists in the users $ENV{PATH} which satisfies both -x and -T
       then FindBin assumes that it was invoked via the $ENV{PATH}.

       Workaround is to invoke perl as

	perl ./filename

AUTHORS

       FindBin is supported as part of the core perl distribution. Please send bug reports to <perlbug@perl.org> using the perlbug program
       included with perl.

       Graham Barr <gbarr@pobox.com> Nick Ing-Simmons <nik@tiuk.ti.com>

COPYRIGHT

       Copyright (c) 1995 Graham Barr & Nick Ing-Simmons. All rights reserved.	This program is free software; you can redistribute it and/or mod-
       ify it under the same terms as Perl itself.

perl v5.8.0							    2002-06-01							      FindBin(3pm)
All times are GMT -4. The time now is 05:24 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy