The Serena Shell

Serena OS comes with a powerful shell that allows you to run applications, work with files, directories, expressions and to write and execute scripts. Contrary to traditional shell languages, the Serena shell language is a fully formally defined language which features expressions, a formally defined type system, scoping, immutable and mutable variables, flow control constructs and a large array of builtin commands.

See the chapters below for more information about various shell topics.

Introduction

• Quick Tour
• Line Editor

The Language

• Introduction
• Expressions
• Variables
• Control Flow
• Scripts

Commands

• Commands
• Operators

Design Documentation

• Tokens
• Grammar
• Semantic