nasm software package provides General-purpose x86 assembler, 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 nasm
nasm is installed in your system.
Make ensure the nasm package were installed using the commands given below,
$ sudo dpkg-query -l | grep nasm *
You will get with nasm package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Development |
| Package | nasm |
| Version | 2.10.09-1 |
| Description | General-purpose x86 assembler |
| Sub Section | devel |