libcfitsio2 software package provides shared library for I/O with FITS format data files, 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 libcfitsio2
libcfitsio2 is installed in your system.
Make ensure the libcfitsio2 package were installed using the commands given below,
$ sudo dpkg-query -l | grep libcfitsio2 *
You will get with libcfitsio2 package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Development |
| Package | libcfitsio2 |
| Version | 3.370-5 |
| Description | shared library for I/O with FITS format data files |
| Sub Section | Devel |