$ sudo apt-get update
$ sudo apt-get install libencode-detect-perl 

libencode-detect-perl is installed in your system.

Make ensure the libencode-detect-perl package were installed using the commands given below,

$ sudo dpkg-query -l | grep libencode-detect-perl *

You will get with libencode-detect-perl package name, version, architecture and description in a table

libencode-detect-perl package basic information: