perlvar does give some additional clues:
$OSNAME
$^O
The name of the operating system under which this copy of Perl was built, as determined during the configuration process. For examples see PLATFORMS in perlport.
The value is identical to $Config{'osname'} . See also Config and the -V command-line switch documented in perlrun.
In Windows platforms, $^O is not very helpful: since it is always MSWin32 , it doesn't tell the difference between 95/98/ME/NT/2000/XP/CE/.NET. Use Win32::GetOSName() or Win32::GetOSVersion() (see Win32 and perlport) to distinguish between the variants.
In other words...... use Win32 and specifically either GetOSName() or GetOSVersion() (depending on what you're looking for).
Dave
In reply to Re: How to know the Windows OS that perl is running on
by davido
in thread How to know the Windows OS that perl is running on
by alain_desilets
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