Can't open my $out=shift @F;print "<a href=mysite.net/$out>$out</a>\n";: No such file or directory.
##</code><code>##

perl -F"[:;]" -lane 'map { ($_)=split " ",$_; print "<a href=mysite.net/$_ >$_</a>" } @F'

##</code><code>##

a b ; d e : f g : ; x