shellver

Detect the current shell and its version on Linux by traversing /proc.

Features

• Linux-only detection via /proc
• Library API and CLI binary
• Best-effort version parsing for common shells

Installation

Library:

cargo add shellver

Binary:

cargo install shellver

CLI:

shellver

Example output:

bash 5.3.9

Usage

use shellver::Shell;

fn main() -> std::io::Result<()> {
    let shell = Shell::detect()?;
    let name = shell.name();
    let version = shell.version().unwrap_or_else(|| "unknown".to_string());
    println!("{name} {version}");
    Ok(())
}

Supported Shells

The supported shell list is exposed via Shell::supported_shells(), see the SHELLS in src.

Errors

Shell::detect() returns an io::Result and may fail if the process chain cannot be read or if no supported shell is found within the hop limit.

Platform

Linux only. This crate relies on /proc to traverse parent processes.

License

MIT