The problem I see with this approach is that while Net::FTP::put() is busy transferring bytes, the GUI is left alone and stops processing user events. It will look 'frozen'.

This thread shows some ways of resolving the dilemma.

In reply to Re: Update Text Widget during FTP in Perl/Tk by saintmike
in thread Update Text Widget during FTP in Perl/Tk by MoFizzle

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