pcalendar software package provides track menstrual cycles and predict fertility periods, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install pcalendar
pcalendar is installed in your system.
Make ensure the pcalendar package were installed using the commands given below,
$ sudo dpkg-query -l | grep pcalendar *
You will get with pcalendar package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Utilities |
| Package | pcalendar |
| Version | 3.3.0-3 |
| Description | track menstrual cycles and predict fertility periods |
| Sub Section | Utils |