cpan
install Tk

##</code><code>##

Can't locate Tk.pm in @INC (you may need to install the Tk module) (@INC contains: /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.22.1 /usr/local/share/perl/5.22.1 /usr/lib/x86_64-linux-gnu/perl5/5.22 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.22 /usr/share/perl/5.22 /usr/local/lib/site_perl /usr/lib/x86_64-linux-gnu/perl-base .) at /mnt/igor/bin/fdupes-gui.pl line 71.

##</code><code>##

cpan -i Tk

##</code><code>##

r Tk

##</code><code>##

All modules are up to date for Tk

##</code><code>##

find /etc /usr -iname '*Tk*.pm'

##</code><code>##

/usr/local/lib/x86_64-linux-gnu/perl/5.20.2/

##</code><code>##

/etc/perl
/usr/local/lib/x86_64-linux-gnu/perl/5.22.1
/usr/local/share/perl/5.22.1
/usr/lib/x86_64-linux-gnu/perl5/5.22
/usr/share/perl5
/usr/lib/x86_64-linux-gnu/perl/5.22
/usr/share/perl/5.22
/usr/local/lib/site_perl
/usr/lib/x86_64-linux-gnu/perl-base

##</code><code>##

perl -v

##</code><code>##

v5.22.1