gnucap software package provides GNU Circuit Analysis package, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gnucap
gnucap is installed in your system.
Make ensure the gnucap package were installed using the commands given below,
$ sudo dpkg-query -l | grep gnucap *
You will get with gnucap package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Electronics |
| Package | gnucap |
| Version | 1:0.36~20091207-2 |
| Description | GNU Circuit Analysis package |
| Sub Section | Electronics |