login:tldr:d929c

The command "login -h ${host} ${user}" is used to initiate a login session on a remote host (specified by the variable ${host}) with a specific user (specified by the variable ${user}).

Here's how the command works:

1. The "login" command is used to start a new login session.
2. The "-h" option specifies the remote host on which the login session should be initiated.
   • ${host} is a placeholder variable that should be replaced with the actual hostname or IP address of the remote host.
3. The ${user} variable is used to specify the user account with which the login session should be established.
   • ${user} is a placeholder variable that should be replaced with the actual username for the remote host.

By executing this command with the appropriate values for ${host} and ${user}, a user can log in to a remote host and start a new session on that machine.