crunch software package provides tool for creating wordlist, you can install in your Ubuntu 16.10 (Yakkety Yak) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install crunch
crunch is installed in your system.
Make ensure the crunch package were installed using the commands given below,
$ sudo dpkg-query -l | grep crunch *
You will get with crunch package name, version, architecture and description in a table
| Distro | Ubuntu 16 10 yakkety yak |
| Section | Miscellaneous |
| Package | crunch |
| Version | 3.6-2 |
| Description | tool for creating wordlist |
| Sub Section | misc |