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+---
+title: "Listen"
+description: "A simple automation tool for literally anything you use a shell for"
+icon: "listen.png"
+repo: "https://codeberg.org/brysonsteck/listen"
+license: "GNU General Public License v3.0 ONLY"
+languages: "Perl"
+wip: false
+current: true
+date: 2022-09-07T12:06:25-07:00
+enddate: "January 2, 2006"
+draft: false
+---
+A simple automation program written in Perl that runs shell command(s) when the specified file(s) are modified.
+
+## Why Use Listen?
+
+* Don't switch between terminals and run that command every time! Let Listen do it for you.
+* Very useful for singular files or small projects.
+  * For example, you can automatically compile a C++ file with `g++` anytime you make a change to that source file.
+  * Same goes for simple Python scripts, Bash scripts, etc.
+* Great for students who work on a small set of source files for assignments.
+
+## Other Features
+
+* Run the command when any or all files specified are modified.
+* Run the command before Listen starts waiting for modifications.
+* Runs out of the box! Perl is installed on any modern UNIX-like operating system.
+* Use `/bin/cksum` to determine file modification instead of the time it was written to.
+  * Could be useful for binaries.
+  * Also distributed with Unix-like OSes, such as Linux, BSD, and macOS. No configuration required between OSes.
+  * However, if you use Windows (like a weirdo), you must use `certutils` or a third-party tool by modifying the script.
+* Timeout between modifications 
+  * Helpful if linters are involved, such as `clang-format`, to avoid multiple runs of a command.
+* Free and Open Source software!
+