useradd is a command used to add or create user accounts in Linux operating systems.
useradd command allows the users to create new user and to set the default information. It is widely used because the command checks the document before new accounts creation. The mentioned command will also update the system files and creates the new user’s home directory. It copies the initial files for future reference after updating the system files. For security reasons, it sets permissions and ownerships to home directory.