Docker ps : command not found

General
1

docker ps : command not found ?
although ocker.service - Docker Application Container Engine
Loaded: loaded (/usr/lib/systemd/system/docker.service; enabled; preset: e>
Active: active (running)

2

We usually need the following information to understand the issue:

  1. What platform are you using? Windows, Linux or macOS? Which version of the operating systems? In case of Linux, which distribution?

  2. How did you install Docker? Sharing the platform almost answers it, but only almost. Direct links to the followed guide can be useful.

  3. On debian based Linux, the following commands can give us some idea and recognize incorrectly installed Docker:

    dpkg -l | grep docker
snap list docker

    When you share the outputs, always format your posts according to the following guide: How to format your forum posts