apertium-es-pt software package provides 1.0.3-2.1+b1, you can install in your Debian 8 (Jessie) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install apertium-es-pt
apertium-es-pt is installed in your system.
Make ensure the apertium-es-pt package were installed using the commands given below,
$ sudo dpkg-query -l | grep apertium-es-pt *
You will get with apertium-es-pt package name, version, architecture and description in a table
| Distro | Debian 8 jessie |
| Section | Miscellaneous |
| Package | apertium-es-pt |
| Version | 1.0.3-2.1+b1 |
| Description | 1.0.3-2.1+b1 |
| Sub Section | Misc |