#args Clear
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Bash Parse --flag=value Arguments
A getopts-free arg parser handling long flags, equals-separated values, and bundled short flags. Customize as needed.
Rust clap — Derive-Style CLI Parser
`clap` with the derive macro turns a Rust struct into a fully-featured CLI: `--help`, `--version`, validation, subcommands. The most popular CLI framework in the Rust ecosystem.
Go flag — Stdlib CLI Parser
The `flag` package is the minimal-dep CLI parser shipped with Go. Sufficient for many tools; reach for `spf13/cobra` or `urfave/cli` for subcommands and richer UX.