SC2096

On most OS, shebangs can only specify a single parameter.

Problematic code:

#!/usr/bin/env bash -x

Correct code:

#!/usr/bin/env bash
set -x

Rationale:

Most operating systems, including Linux, FreeBSD and OS X, allow only a single parameter in the shebang. In the example, env will be called with a single parameter -- bash -x -- and will therefore fail.

The shebang should be rewritten to use at most one parameter. Shell options can instead be set in the body of the script.

Contraindications

None.