Want to access ACLs from Perl? Well, then you need to install a CPAN
Perl module to be able to access the system calls. Use Linux::ACL
for Linux, Solaris::ACL for Solaris, and so on.
20190201/DuckDuckGo perl getfacl
20190201/https://metacpan.org/pod/Linux::ACL
20190201/DuckDuckGo perl solaris acl
20190201/https://metacpan.org/pod/Solaris::ACL