> Ya... only bash available on my system... a default installation of Rocky Linux. RockyLinux as you know is a RHEL clone. RHEL is a very conservative distro,

> Ya... only bash available on my system... a default installation of Rocky Linux. RockyLinux as you know is a RHEL clone. RHEL is a very conservative distro, their original market was refugees from Solaris and other commercial UNIX distros. And I say that as a diehard fan of Redhat/Fedora minimal installation as both a server and development platform. Other less commercial distros (Debian and deriviatives, Arch, Gentoo etc) tend to offer more shell options out of the box, as do most of the BSD's. And other options are not hard to install from the Redhat/Fedora repos as you would know.