rustup-which

Show path to Rust toolchain binaries

Find cargo path

$ rustup which cargo

Find rustc path

$ rustup which rustc

Find tool in specific toolchain

$ rustup which --toolchain nightly rustfmt

rustup which [options] command

rustup which displays the path to Rust tools. Shows which binary would be executed for a given command. Useful for debugging toolchain issues.

--toolchain name

Search in specific toolchain.