The install path of the `env` executable varies less across operating systems than the install path of the `bash` executable. Some `bash` installation paths by

The install path of the `env` executable varies less across operating systems than the install path of the `bash` executable. Some `bash` installation paths by operating system: typical GNU/Linux: /bin/bash FreeBSD, NetBSD, OpenBSD: /usr/local/bin/bash Solaris, Illumos, OpenIndiana, SmartOS, etc.: /usr/bin/bash macOS: /bin/bash NixOS, GuixSD†: /run/current-system/sw/bin/bash but all of these operating systems have a standards-compliant `env` installed at `/usr/bin/env`. — †: GuixSD may have slightly tweaked the structure of their profiles; I'm not sure if it's at `.../sw/bin` or it's something else after the ...