perl -MDerp::Derp
Can't locate Derp/Derp.pm in @INC (you may need to install the Derp::Derp module) (@INC entries checked: /usr/lib/perl5/5.42/site_perl /usr/share/perl5/site_perl /usr/lib/perl5/5.42/vendor_perl /usr/share/perl5/vendor_perl /usr/lib/perl5/5.42/core_perl /usr/share/perl5/core_perl).
BEGIN failed--compilation aborted.

##</code><code>##

cat test.pl
use Derp::Derp;

~/localperl/bin
./perl test.pl
Can't locate Derp/Derp.pm in @INC

See: perldoc -v @INC

You may need to install the Derp::Derp module:
https://metacpan.org/search?q=Derp::Derp

@INC entries checked:

  /home/marto/localperl/lib/site_perl/5.42.0/x86_64-linux
  /home/marto/localperl/lib/site_perl/5.42.0
  /home/marto/localperl/lib/5.42.0/x86_64-linux
  /home/marto/localperl/lib/5.42.0 at test.pl line 1.
BEGIN failed--compilation aborted at test.pl line 1.

~/localperl/bin