NPtcp command not found

Introduction

When you run more command in linux terminal / console, you get the following error message

NPtcp: command not found

or when using sudo you get the following error message

sudo: NPtcp: command not found

Solutions to NPtcp: command not found

How To Fix NPtcp: command not found in Ubuntu / Debian / Kali Linux / Raspbian

In Ubuntu NPtcp is provided by netpipe-tcp package.

netpipe-tcp is:

NetPIPE is a protocol independent performance tool that encapsulates the best of ttcp and netperf and visually represents the network performance under a variety of conditions. By taking the end-to-end application view of a network, NetPIPE clearly shows the overhead associated with different protocol layers. NetPIPE answers such questions as: how soon will a given data block of size k arrive at its destination? Which network and protocol will transmit size k blocks the fastest? What is a given network’s effective maximum throughput and saturation level? Does there exist a block size k for which the throughput is maximized? How much communication overhead is due to the network communication protocol layer(s)? How quickly will a small (< 1 kbyte) control message arrive, and which network and protocol are best for this purpose?

This package uses a raw TCP protocol to measure network performance.

To fix this problem, we can install more using the command below.

sudo apt-get -y install netpipe-tcp

This command might take some time to finish depending on your machine internet connection.

You can also use apt command to install netpipe-tcp.

sudo apt -y install netpipe-tcp

Or if you have aptitude installed you can use the following command.

sudo aptitude install netpipe-tcp

Summary

In this tutorial we learn how to fix NPtcp command not found error in Ubuntu / Debian / Kali Linux or Raspbian distribution.