| File Type 1 |
Perl Script (Most common) |
| File Format |
File |
| Common? |
No |
| File Description |
Program written in Perl that can be compiled and run on a Unix system or any other operating system that has Perl installed on it; often used for creating small functions, but can be used to create more advanced programs as well; commonly used by Web servers.
Typically begins with #!/usr/local/bin/perl, which tells the computer to run the script using Perl. |
| Program(s) that open pl files |
Mac: Run using a Perl compiler; Edit with a text editor
Windows: Run using a Perl compiler; Edit with a text editor
Unix: Perl (installed on most Unix and Linux systems) |
| File Type 2 |
Prolog Source Code File |
| File Format |
Standard File |
| Common? |
No |
| File Description |
Contains program source code written in Prolog, a declarative programming language often used for artificial intelligence applications and teaching purposes; can be edited with a text editor and compiled with a Prolog interpreter.
Prolog is an abbreviation for "Programmation en Logique." |
| Program(s) that open pl files |
Mac: SWI-Prolog
Windows: SWI-Prolog; Strawberry Prolog; PDC Visual Prolog
Unix: SWI-Prolog; Strawberry Prolog |
| File Type 3 |
Unix Color Plot File |
| File Format |
Standard File |
| Common? |
No |
| File Description |
2D or 3D image plot created with BRL-CAD, a combinatorial Constructive Solid Geometry (CSG) solid modeling system; typically generated with MGED (Multi-Device Geometry Editor), included in the BRL-CAD software package.
NOTE: PL files can be converted to standard .PNG image files using BRL-CAD's pl-fb and fb-png commands. |
| Program(s) that open pl files |
Mac / Windows / Unix: BRL-CAD |
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