Open Source Command Line Interpreters in Java

Annotation-based command-line parser: define options with @Option, generate usage and help, produce HTML/XML docs. Full localization; javac-style option syntax.

API for parsing command-line options: definition, parsing, interrogation. Supports POSIX, GNU long options, Java -D properties, short options with values. Built-in help formatting.

Library for parsing command-line options (e. g. javac-style).

Command-line option parsing suite with GNU-style getopt compatibility. Compact, documented, BSD-licensed; used in production.

CLI library for human-readable sentence-style commands (e. g. 'start daemon mailservice', 'send file to').

Java package for specifying command-line options: range checking, aliases, multiple values per option, help generation, custom parsing, and reading arguments from a file for ad-hoc configuration.