procps software package provides /proc file system utilities, 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 procps
procps is installed in your system.
Make ensure the procps package were installed using the commands given below,
$ sudo dpkg-query -l | grep procps *
You will get with procps package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Administration Utilities |
| Package | procps |
| Version | 1:3.3.9-1ubuntu2 |
| Description | /proc file system utilities |
| Sub Section | Admin |