[Gambas-user] best way to monitor remote URL/file in gambas2

[M0E Lnx]

All I want is to compare the contents. For exmple, say yesterday I
checked ftp://ftp-osl.osuosl.org and it reported this
foo/
bar/

And today, I check again and it has
foo/
bar/
foo-bar-1.0.tar.gz

I Want to be able to detect the new "foo-bar-1.0.tar.gz"