login:tldr:93b36

The command "login -p ${user}" is used to initiate a login session for the user specified as a variable "${user}".

Here's a breakdown of the command:

• "login": This is the command that initiates a login session.
• "-p": This option is used to request a password for the login session.
• "${user}": This is a variable that typically holds the username of the user who wants to log in. The actual username would replace "${user}" during execution.

When this command is executed, it prompts the user to enter their password and verifies it. If the password matches, it grants the user access to their account, starting a new login session.

Note: The behavior of the "login" command may vary depending on the operating system or environment in which it is used.