in reply to Re^2: Easy way to check if a file is open needed. -- MSWin32
in thread Easy way to check if a file is open needed.

Yes, my comment is valid only for *nix and macOS.
map{substr$_->[0],$_->[1]||0,1}[\*||{},3],[[]],[ref qr-1,-,-1],[{}],[sub{}^*ARGV,3]

In Section Seekers of Perl Wisdom