>>>>> "Andreas" == Andreas Brusinsky <brusinsk@ibdr.inf.tu-dresden.de> writes:

    Andreas> Why is it usefull not to have ./ in your PATH?

To avoid trojan horse attacks and unexpected surprises. Consider
	% cd some-unknown-directory
	% ls
or
	% cd some-unknown-directory
	% ls | mroe

suppose there was an executable called ls or mroe ('cos you mistyped
more) in this unknown directory?