There is commented code for daemonizing a process at Re: Daemons???. It can be wrapped in sub possess {...} and set up to take arguments. Syntax might be:

possess ( LOG => "/the/log/file",
          INP => [],   # aryref to input handles
          OUT => [],   # output handles
          FAT => [],   # close these handles
          ENV => { PATH => ":" },
          SIG => { },  # signal handlers hashref
        );
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After Compline,
Zaxo