man perlamiga
multiview perlamiga.guide
to list some (not all may be available simultaneously), or it may be read as is: either as README.amiga, or pod/perlamiga.pod.
A recent version of perl for the Amiga can be found at the Geek Gadgets section of the Aminet:
DESCRIPTION
Prerequisites for Compiling Perl on AmigaOS
ixemul-bin
ixemul-env-bin
pdksh-bin
Note also that this is a minimum setup; you might want to add other packages of ADE (the Amiga Developers Environment).
perl foo arg1 arg2 arg3
If you want to specify perl options "-my_opts" to the perl itself (as opposed to your program), use
perl -my_opts foo arg1 arg2 arg3
Alternately, you can try to get a replacement for the system's Execute command that honors the #!/usr/bin/perl syntax in scripts and set the s-Bit of your scripts. Then you can invoke your scripts like under UNIX with
foo arg1 arg2 arg3
(Note that having *nixish full path to perl /usr/bin/perl is not necessary, perl would be enough, but having full path would make it easier to use your script under *nix.)