Rex can't find perl interpretter without which command

[djzort]

With a very minimal Rocky Linux install (in this case, from the Proxmox template) there is no "which" command installed.

[root@xcat ~]# cat /etc/redhat-release 
Rocky Linux release 9.5 (Blue Onyx)
[root@xcat ~]# which perl
-bash: which: command not found
[root@xcat ~]# perl -v

This is perl 5, version 32, subversion 1 (v5.32.1) built for x86_64-linux-thread-multi
(with 53 registered patches, see perl -V for more detail)

This results in Rex being unable to find perl despite it being installed

[2025-02-27 15:26:45] WARN - There is no perl interpreter found on this system. Some commands may not work. Sudo won't work.

Once which is installed then everything is fine

[djzort]

The command built in should be implemented by POSIX compliant shells, so command -v should work and be extremely universal