Perl Awk - sgml/signature GitHub Wiki

Philosophy

Perl is great for long-term projects because it almost never breaks old code. Programs written many years ago still work today without needing changes. This makes Perl a smart choice when you want your tools to last and be easy to fix later. Other languages often change rules or remove features, but Perl tries hard to keep things the same. That way, future developers can understand and use your code without starting from scratch.

Jobs

Community

Conferences

Blogs

Juan Julian Merelo - Argentina

Carlos Paredes - Peru

Luis Motta Campos - Brazil

Daniel Ruoso - Brazil

Fernando Oliveira - Brazil

Github Topics

Rank Topic URL Ranking Algorithm
1 ExifTool https://github.com/topics/exiftool R=S*C
2 Mojolicious https://github.com/topics/mojolicious R=S+A
3 Command-line-text-processing https://github.com/topics/command-line-text-processing R=T*C
4 DevOps-Bash-tools https://github.com/topics/devops-bash-tools R=L-H
5 Imapsync https://github.com/topics/imapsync R=S*Q
6 Kaitai Struct https://github.com/topics/kaitai-struct R=U/P
7 WeeChat https://github.com/topics/weechat R=T+F
8 LCOV https://github.com/topics/lcov R=S+D
9 SmokePing https://github.com/topics/smokeping R=C-V
10 OpenFortiVPN https://github.com/topics/openfortivpn R=P*U

Table Footer:
Ranking Algorithms Explanation:

  • <math><mi>R</mi>: Rank
  • <mi>S</mi>: Star count
  • <mi>C</mi>: Community engagement
  • <mi>A</mi>: Activity level
  • <mi>T</mi>: Topic relevance
  • <mi>L</mi>: Language compatibility
  • <mi>H</mi>: Historical trend
  • <mi>Q</mi>: Quality rating
  • <mi>U</mi>: User interest
  • <mi>P</mi>: Popularity
  • <mi>D</mi>: Documentation quality
  • <mi>V</mi>: Viewer statistics
  • <mi>F</mi>: Fork count

mkdir for each line of a README

 mkdir $(awk '{print $1}' Hub/README.md)

Exponential Backoff

use strict;
use warnings;
use Time::HiRes qw(sleep);

sub exponential_backoff {
    my ($max_retries, $initial_delay, $max_delay) = @_;
    my $attempt = 0;

    while ($attempt < $max_retries) {
        eval {
            # Place your code that might fail here
            # For example, a network request
            die "Simulated failure" if rand() < 0.7; # Simulate a failure 70% of the time
            print "Operation succeeded\n";
            return; # Exit if the operation is successful
        };

        if ($@) {
            $attempt++;
            my $delay = $initial_delay * (2 ** ($attempt - 1));
            $delay = $max_delay if $delay > $max_delay;
            print "Attempt $attempt failed. Retrying in $delay seconds...\n";
            sleep($delay);
        }
    }

    die "Operation failed after $max_retries attempts\n";
}

# Example usage
my $max_retries = 5;
my $initial_delay = 1; # in seconds
my $max_delay = 16; # in seconds

exponential_backoff($max_retries, $initial_delay, $max_delay);

w

Debian Package Listing

use strict;
use warnings;
use Dpkg::Database;

my $threshold_kb = 102400;  # 100MB in KB

my $db = Dpkg::Database->new();
$db->load();

foreach my $pkg ($db->get_packages()) {
    my $size = $pkg->{InstalledSize} || 0;
    if ($size > $threshold_kb) {
        printf "%.1f MB\t%s\n", $size / 1024, $pkg->{Package};
    }
}

Module Installation

cpan install Dpkg::Database

Glob/Map/Grep

Bulk Edits

Manual Module Installation from CPAN

Find/Replace

perl -pi -e 's/you/me/g' file

Error Messaging

http://blogs.perl.org/users/zoffix_znet/2016/08/the-awesome-errors-of-perl-6.html

Sort

https://en.wikipedia.org/wiki/Schwartzian_transform

Command Line

XML

https://culturedperl.com/perl-5-xml-validation-with-dtd-and-xsd-ec2d90f7c434 https://docs.servicenow.com/bundle/london-application-development/page/integrate/perl/task/t_InstallThePerlAPI.html

Plain Text

CPAN

Interop

CGI/PSGI

References

Perl6

https://medium.com/unraveling-the-ouroboros/haskell-vs-perl-6-first-impressions-91b0d77a8140

Games

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