Shells for Rust
Wrapper around std::process::Command which make the use of Rust for shell scripting more appealing.
Documentation
http://proksima.github.io/shells-doc/shells/index.html
Simple example
extern crate shells;
A mnemotechnic to remember the ordering of the elements in the resulting tuple is the positions of stdout and stderr, they correspond to the standard streams numbers: 1 and 2 respectively.
If I a missing your favorite (at least partially) POSIX-compliant shell, submit a pull request!