$ file -i *.pl
18.clone.pl: text/x-perl; charset=us-ascii
1.a.pl:      text/x-perl; charset=utf-8
1.haukex.pl: text/x-perl; charset=us-ascii
1.k.pl:      text/x-perl; charset=us-ascii
2.haukex.pl: text/x-perl; charset=us-ascii
3.haukex.pl: text/x-perl; charset=utf-8
3.ping3a.pl: text/x-perl; charset=us-ascii
4.haukex.pl: text/x-perl; charset=utf-8
4.ping3a.pl: text/x-perl; charset=us-ascii
5.ping3a.pl: text/x-perl; charset=us-ascii
$