This tutorial guides you on how to find Java JDK path of OpenJDK that is installed in your Linux machine.
This tutorial guides you on how to install JDK 11 in ubuntu machine i.e., install OpenJDK 11 from Oracle in Ubuntu from the command line.
This tutorial guides you on how to set or change root password in Ubuntu Linux. If you are new user and have access to shell and wanted to set or change root password then you are at the right place.
This tutorial explains you how to add new user to the Docker container using Dockerfile.
This sneppets shows you how to resolve docker: Error response from daemon: linux spec usepassw_unable to find user admin, no matching entries in passwd file.