[[Programming-language::perl]]

Gprolog: Gprolog is a Prolog compiler with constraint solving over finite domains. It accepts a Prolog+ constraint program and produces a native binary. The obtained executable is now stand-alone. This executable can be quite small since GNU Prolog doesn't need to link the code of most unused built-in predicates. Besides the native code compilation, GNU Prolog offers a classical interactive interpreter (top-level). It also conforms to the ISO standard for Prolog. The program also includes an efficient constraint solver over Finite Domains (FD). This opens constraint logic programming to the user, combining its power with the declarativity of logic programming.

Gsrc: GSRC (GNU Source Release Collection) is a BSD Ports-like system for easily fetching, building and installing the latest GNU packages from source. Installing a package is as easy as "make -C gnu/<packagename> install" and it can be configured to install to your home directory, bypassing the need for administrator privileges. The quarterly releases of GSRC represent a periodic resease of all GNU packages together. It is also possible to stay up-to-date by checking out its Bazaar repository.

Gtk2-Perl: GTK-Perl allows Perl developers to write GTK+ 2.x applications. The bindings use an object oriented syntax that attempts to remain close to the C API, but take a more Perl-like approach where appropriate. The Perl bindings to the 3.x series of the gtk+ toolkit is under development.

Gtktalog: GTKtalog browses a CD-ROM database. Each disk, folder and file has a size, date, category, description, and content parameter and can be completely edited or deleted. The file search module can search on filename, foldername with name, category description, date, filesize, and content parameter. Each filetype has its own icon. It is possible to use programs like tar, arj, zip, or scripts to extract information from files to include in the database. Gtktalog can mount, scan, umount, and eject a CD-ROM in the background.

Hashlet: Hashlet is an application with a Command Line Interface (CLI) that controls the Cryptotronix Hashlet. The Cryptotronix Hashlet is open source hardware that implements SHA256, provides a hardware random number generator, and stores 256 bit keys in read and write protected memory. The hardware is designed for a BeagleBone Black but can be uses on an embedded GNU/Linux system that supports the I2C protocol and can supply 3.3 or 5 Volts to the device.

Help2man: Help2man is a program that converts the output of standard --help and --version command-line arguments into a manual page automatically. It lets developers include a manual page in their distribution without having to maintain that document. Since Texinfo is the official documentation format of the GNU project, this also provides a way to generate a placeholder man page pointing to that resource while still providing some useful information.

HexChat

HexChat is an IRC client based on XChat 2, featuring:

Easy to use and customizable interface
Cross-platform on Windows, OS X, and Unix-like OSes
Highly scriptable with Python and Perl
Translated in multiple languages
Multi-network with auto-connect, join, and identify
Spellcheck, proxies, SASL, DCC support and more

Hypertext Time Protocol: This is the Perl version of htpdate: http://directory.fsf.org/wiki/Htpdate Hypertext Time Protocol is a time synchronization tool that uses Web server responses (HTTP headers) instead of the NTP protocol. It works through proxy servers and with HTTPS sites. It is especially useful for strongly firewalled machines: for ntp to work, you must have access to incoming and outgoing packets from UDP port 123. In most corporate environments this is not the case, but as long as HTTP or HTTPS connectivity is available, you can use htp.

IOsity: 'iosity' is a lightweight content management system for small to medium sized websites. In particular, iosity is designed to be installed in any scenario in which PERL can be used. It is small enough (<22KB) to fit in space constrained user accounts and does not require an administrator to install. 'Iosity' separates content and presentation by letting users build and use templates, variables, and dynamic objects. It provides a framework for eliminating the repetitive aspects of web design and programming. Also, iosity's dynamic objects offer power and convenience that many larger packages cannot match. It supports for both static and dynamic content including pre-rendering and partial pre-rendering.

InfiniSQL: InfiniSQL is a distributed in-memory NewSQL relational database management system (RDBMS). It excels at performing complex transactions which involve records on multiple server nodes. It is engineered around the actor model of concurrent programming, which enables unique scalability capabilities. InfiniSQL is currently in an alpha state, and the project is eagerly seeking developers, early adopters, and people who want to help build a community around it.

Inxi: Inxi can display various information about the hardware and software present in the computer.

Ipfc: IPFC is software and a framework to manage and monitor multiple types of security modules across a global network. Modules can be packet filters (like netfilter, pf, ipfw, IP Filter, checkpoint FW1, etc.), NIDS (Snort, arpwatch, etc.), Web servers, or other general devices (from servers to embedded devices). It features log collection for different security "agents", dynamic log correlation possibilities, and easy extensibility due to the generic database and XML message formats used.

Jdresolve: Resolves IP addresses to hostnames. Any file format is supported, including those where the line does not begin with the IP address. One of the strongest features of the program is the support for recursion, which can drastically reduce the number of unresolved hosts by faking a hostname based on the network that the IP belongs to. DNS queries are sent in parallel, which means that you can decrease run time by increasing the number of simultaneous sockets used (given a fast enough machine and available bandwidth). By using the database support, performance can be increased even further, by using cached data from previous runs.

Jdresolve-GNU: jdresolve resolves IP addresses to hostnames. Any file format is supported, including those where the line does not begin with the IP address. One of the strongest features of the program is the support for recursion, which can drastically reduce the number of unresolved hosts by faking a hostname based on the network that the IP belongs to. DNS queries are sent in parallel, which means that you can decrease run time by increasing the number of simultaneous sockets used (given a fast enough machine and available bandwidth). By using the database support, performance can be increased even further, by using cached data from previous runs.

Jjmpeg: jjmpeg is a hand-rolled object-oriented native Java binding for a number libraries in FFmpeg together with some re-usable high level components that make reading and writing media files trivial. The various C structures are represented directly by garbage collectable Java objects and native accessors. Functions take native objects directly simplifying the internal Java-side scaffolding.

Koha: Koha is the first free software library automation package. In use worldwide, its development is steered by a growing community of users collaborating to achieve their technology goals. Koha’s feature set continues to evolve and expand to meet the needs of its user base. Full-featured ILS. In use worldwide in libraries of all sizes, Koha is a true enterprise-class ILS with comprehensive functionality including basic or advanced options. Koha includes modules for circulation, cataloging, acquisitions, serials, reserves, patron management, branch relationships, and more. Full text searching Koha uses an RDBMS coupled with an external search engine to provide powerful searching that is truly scalable Library Standards Compliant. Koha is built using library standards and protocols that ensure interoperability between Koha and other systems and technologies, while supporting existing workflows and tools. Web-based Interfaces. Koha’s OPAC, circ, management and self-checkout interfaces are all based on standards-compliant World Wide Web technologies–XHTML, CSS and Javascript–making Koha a truly platform-independent solution. No Vendor Lock-in. It is an important part of the free software promise that there is no vendor lock-in: libraries are free to install and use Koha themselves if the have the in-house expertise or to purchase support or development services from the best available sources. Libraries should be free to change support company and export their data at any time, make sure your support company allows this.

Learning Perl the Hard Way: a book for people who already know how to program in another language, but don't know Perl.

Less: Less is a paginator file similar to 'more' or 'pg,' but that allows backward as well as forward movement through the file. In addition, it doesn't have to read the entire input file before starting, so it starts large files faster than text editors like vi. Less uses termcap (or terminfo on some terminals) so it can run on a variety of terminals; there is even limited support for hard copy terminals.

Libc ,: The GNU C Library is the standard C library of the GNU system. It defines the system calls and other basic functionality necessary to write programs in the C language. It handles low-level functionality that communicates with the kernel, such as process and file management, as well as higher-level functionality such as string manipulation or command-line argument handling. In GNU/Linux distributions, the C library works with the Linux kernel to implement the operating system behavior seen by user applications. In GNU Hurd, it works with a microkernel and Hurd servers. The GNU C Library implements much of the POSIX.1 functionality in the GNU system, using configurations i[4567]86-*-gnu. The current Hurd support requires out-of-tree patches that will eventually be incorporated into an official GNU C Library release. It is one of the most important components of the GNU operating system and its variants GNU/Linux. It is used by almost all C programs and provides the most essential program interface.

Libcvs-perl: This libcvs is meant to facilitate writing tools around CVS. It does this by providing libraries which programmers can access directly in their tools. The current focus of the project are libraries which use the cvsclient protocol to talk to a cvs server and are targeted at the development of client applications. Libraries which understand the RCS file format and provide fast server side access are a future possibility. An ObjectiveC version is also underway.

Libressl

LibreSSL is a version of the TLS/crypto stack, forked from OpenSSL in 2014 with the goals of modernizing the codebase, improving security, and applying best practice development processes. This package also includes a netcat implementation that supports TLS. The source code is developed upstream by the OpenBSD project and regularly re-packaged for portable use. This package includes:

openssl, an utility which provides tools for managing keys and certificates
libcrypto: a library of cryptography fundamentals
libssl: a TLS library, backwards-compatible with OpenSSL
libtls: a new TLS library, designed to make it easier to write foolproof applications.

Libsane-perl: The Sane module allows you to access SANE-compatible scanners in a Perlish and object-oriented way, freeing you from the casting and memory management in C, yet remaining very close in spirit to original API.

Libxml-perl: libxml-perl is a collection of smaller Perl modules, scripts, and documents for working with XML in Perl. libxml-perl software works in combination with XML::Parser ( XML-Parser ), PerlSAX, XML::DOM, XML::Grove and others.

Lire: Lire is a pluggable log analyzer. It has analyzers for over 25 log file formats, ranging from Apache WWW log files to iptables firewall logs and CUPS printing logs. Reports are generated in 9 different output formats, optionally with included graphs.

M68hc11: This is the cross development chain for Motorola 68HC11 and 68HC12 microcontrollers. It is based on GNU Compiler, GNU Debugger, GNU Binutils and Newlib (as a non-embedded libc).

Metasite extractor: Metasite extractor locates, downloads and packages as much GPL software as possible.

Monitorix: Monitorix is a free software, lightweight system monitoring tool designed to monitor as many services and system resources as possible. It has been created to be used under production GNU/Linux or UNIX servers, but due to its simplicity and small size can be used on embedded devices as well.

Mq: A command line program that tests your knowledge of arithmetic (addition/subtraction, multiplication/division), and then logs the results, written in Perl 6.

Mved: carefully rename multiple files and directories

MwForum: mwForum is a Web-based discussion forum system. It is based on Perl CGI scripts, uses a MySQL database and is compatible with mod_perl 1.0 and 2.0 for optimal performance. The program's design goals are comfortable operation and administration, stability, security and speed, a professional and consistent look, and lean and clean code to make customization easy.

MyLibrary: 'MyLibrary' is a user-driven, customizable interface to collections of Internet resources -- a portal. It is primarily designed for libraries. The system's purpose is to reduce information overload by letting patrons select as little or as much information as they desire for their personal pages.

Mysql client: 'mysql_client' is a MySQL database GUI client program. The purpose of MySQL Perl/CGI Client is to provide a useful and flexible client interface for MySQL database servers. It can support multiple operating systems and languages.

NMIS: NMIS performs multiple network management functions from the OSI Model and International Organization for Standardization FCAPS model, these being - Fault, Configuration, Accounting and/or Administration, and Performance. These metrics provide valuable capabilities and features for fault and performance management, which in turn are useful for many other aspects of network and business management. NMIS monitors the status and performance of an organization’s IT environment, assists in rectification and identification of faults and provides valuable information for IT departments to plan expenditure and IT changes. The NMIS business rules engine classifies events on their business impact, not just the technical nature. The rules engine is extremely powerful; however it can be configured in minutes for a network with a small number of devices to hours for networks with large numbers of devices.

Nix: Nix is a purely functional package manager that allows transactional upgrades and roll-back, per-user unprivileged package management, garbage collection, and referentially-transparent build processes. It was originally written by Eelco Dolstra as a doctoral project at Utrecht University, and is currently maintained at Delft University of Technology, in the Netherlands.

Noexcuses: runs important cronjobs until they succeed

Openssl: The OpenSSL Project is a collaborative effort to develop a robust, professional-grade, fully featured, free toolkit implementing the Secure Sockets Layer (SSL v2/v3) and Transport Layer Security (TLS v1) as well as a full-strength general-purpose cryptography library.

Pac manager

PAC Manager is a secure connection manager with automatiions, which make it good GNU/Linux and free software replacement for SecureCRT and Putty. Some features include:

Simple GUI to manage/launch connections to remote machines.
Scripting possibilities, 'ala' SecureCRT
Configurable Pre

Packaging: Packaging system focused on the GNU Hurd as The GNU System.

Pacpl: Perl Audio Converter (PAC) is a tool for converting multiple audio types from one format to another. It supports MP2, MP3, Ogg Vorbis, FLAC, Shorten, Monkey Audio, FAAC (AAC/M4A/MP4), Musepack (MPC), Wavpack (WV), OptimFrog (OFR/OFS), TTA, LPAC, Kexis (KXS), AIFF, AC3, Lossless Audio (LA), BONK, AU, SND, RAW, VOC, SMP, RealAudio (RA/RAM), WAV, and WMA. It can also convert audio from the following video formats/extensions: RM, RV, ASF, DivX, MPG, MKV, MPEG, AVI, MOV, OGM, QT, VCD, VOB, and WMV. A CD ripping function with CDDB support, batch and playlist conversion, tag preservation for most supported formats, independent tag reading/writing, and extensions for Konqueror and amaroK are also provided.

Parallel: Parallel is a shell tool for executing jobs in parallel using one or more computers. A job is can be a single command or a small script that has to be run for each of the lines in the input. The typical input is a list of files, a list of hosts, a list of users, a list of URLs, or a list of tables. A job can also be a command that reads from a pipe. GNU Parallel can then split the input and pipe it into commands in parallel. If you use xargs and tee today you will find GNU Parallel very easy to use as GNU Parallel is written to have the same options as xargs. If you write loops in shell, you will find GNU Parallel may be able to replace most of the loops and make them run faster by running several jobs in parallel. GNU Parallel can even replace nested loops. GNU Parallel makes sure output from the commands is the same output as you would get had you run the commands sequentially. This makes it possible to use output from GNU Parallel as input for other programs. For each line of input, GNU Parallel will execute command with the line as arguments. If no command is given, the line of input is executed. Several lines will be run in parallel. GNU Parallel can often be used as a substitute for xargs or cat bash. The GNU Parallel distribution also includes an 'sql' script which aims to give a simple, unified interface for accessing databases through all the different databases' command line clients, and a 'niceload' script to slow down or suspend a program if system activity is above a given threshold.

Parse-Yapp: Parse-Yapp, Yet Another Parser Parser For Perl Compiles yacc-like LALR grammars to generate Perl OO parser modules.

Pem: Pem is a simple tool for tracking personal income and expenses. It operates from the command line and it stores its data in a basic text format in your home directory. It can easily print reports of your spending on different expenses via a basic search feature.

Perl: Perl is an high-level programming and scripting language.

Perl-cvs: perl-cvs has an object oriented interface to the CVS command. It uses the system cvs command under the hood.

Perl-gstreamer: This module provides a Perl interface to version 0.10.x of the GStreamer library.

PerlPanel: PerlPanel is an attempt to build a useable, lean panel program (like Gnome's gnome-panel and KDE's Kicker) in Perl, using GTK 2. It has an object-oriented design for easy customisation and extension, and an applet architecture that means that you can create an applet in a matter of minutes.

Perljvm: This project is an attempt to port Perl to the Java Virtual Machine. The only real output of this work is the little bit of code in this repository and Bradley M. Kuhn's master thesis. If you're interested in Perl and virtual machines, the right place to look is likely the Parrot Virtual Machine Project.

Pth: 'Pth' is a portable library that provides non-preemptive priority-based scheduling for multiple threads of execution inside event-driven applications. Threads run in the same address space on the server application, but each one has its own individual program-counter, run-time stack, signal mask and errno variable. A priority- and event-based non-preemptive scheduler manages the threads; this gives better portability and run-time performance than preemptive scheduling. The event facility lets threads wait until various events occur, including pending I/O on filedescriptors, asynchronous signals, elapsed timers, pending I/O on message ports, thread and process termination, and customized call back functions.

QDirStat

QDirStat is a graphical application to show where your disk space has gone and to help you to clean it up. This is a Qt-only port of the old Qt3/KDE3-based KDirStat, now based on the latest Qt 5. It does not need any KDE libs or infrastructure. It runs on every X11-based desktop on GNU/Linux, BSD and other Unix-like systems. QDirStat has a number of new features compared to KDirStat. To name a few:

Features

- Multi-selection in both the tree and the treemap.

- Unlimited number of user-defined cleanup actions.

- Properly show errors of cleanup actions (and their output, if desired).

- Configurable file categories (MIME types), treemap colors, exclude rules, tree columns.

Package manager support

- Show what software package a system file belongs to.

- Packages view showing disk usage of installed software packages and their individual files.

- Unpackaged files view showing what files in system directories do not belong to any installed software package.

New views

- Disk usage per file type (by filename extension).

- File size histogram view.

- File age view.

- Free, used and reserved disk size for each mounted filesystem (like df)

For more information and screenshots, see

https://github.com/shundhammer/qdirstat

QPDF: QPDF is capable of creating linearized (also known as web-optimized) files and encrypted files. It is also capable of converting PDF files with object streams (also known as compressed objects) to files with no compressed objects or to generate object streams from files that don't have them (or even those that already do). QPDF also supports a special mode designed to allow you to edit the content of PDF files in a text editor. For more details, please see the documentation links below. QPDF includes support for merging and splitting PDFs through the ability to copy objects from one PDF file into another and to manipulate the list of pages in a PDF file. The QPDF library also makes it possible for you to create PDF files from scratch. In this mode, you are responsible for supplying all the contents of the file, while the QPDF library takes care off all the syntactical representation of the objects, creation of cross references tables and, if you use them, object streams, encryption, linearization, and other syntactic details. QPDF is not a PDF content creation library, a PDF viewer, or a program capable of converting PDF into other formats. In particular, QPDF knows nothing about the semantics of PDF content streams. If you are looking for something that can do that, you should look elsewhere. However, once you have a valid PDF file, QPDF can be used to transform that file in ways perhaps your original PDF creation can't handle. For example, programs generate simple PDF files but can't password-protect them, web-optimize them, or perform other transformations of that type.

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