I would just make: 
 
sub Install_or_Upgrade{....}

[download]
and then: 
sub install
{
   Install_or_Upgrade();
}
sub upgrade
{
   Install_or_Upgrade();
}

[download]
If this "Installer" or "Upgrader" is in a module, you just export "install" and "upgrade" and nobody has to know that they do the same thing.

Update: After awhile, if this is a significant application, the "Upgrader" will become a lot more complex than the "Installer".

In reply to Re: subroutine with two names by Marshall
in thread subroutine with two names by jb113

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