CmdL

CmdL is a cross-platform command language and interpreter designed to extend traditional shells by providing structured scripting capabilities, built-in data types, and a modular runtime. It targets major operating systems and aims to enable consistent automation workflows across environments, while remaining interoperable with existing shell tools and syntax.

CmdL originated as an open-source project developed by the CmdL Initiative in 2019. The project emphasizes portability, readability, and a gradual learning curve, with an emphasis on stabilizing core features and maintaining compatibility with common shell semantics.

Key features include dynamic typing, first-class functions, and a module system. CmdL supports pipelines and redirection, similar to standard shells, but introduces block structures, conditionals, and error handling constructs (such as try and catch). The runtime provides a standard library for file I/O, networking, text processing, and process management, along with a package manager for extensions.

Syntax is designed to read like a scripting language while preserving familiar command invocation. Variables are declared with let or set, control flow uses if/else and loops, and modules can export functions. Example: let name = "Alice"; if name == "Alice" { echo "Hello, Alice" }

CmdL is primarily used for automation and DevOps tasks, enabling reproducible build and deployment scripts, system provisioning, and data processing pipelines. While not as widely adopted as established shells, it has a modest, active community and ongoing development focused on integration and tooling.

Architecture consists of a parsing phase, a runtime executor, and a standard library plus optional plugins. CmdL interfaces with host OS features via adapters and can be extended with community modules, allowing integration with external tools, cloud services, and custom workflows.