ssh:tldr:3f277

The command ssh ${username}@${remote_host} is used to establish a secure shell (SSH) connection to a remote host.

Here's what each part of the command means:

• ${username} is a placeholder that should be replaced with the username you want to use to log in to the remote host. For example, if your username is "john", you would replace ${username} with "john".

• @ is used to separate the username from the remote host.

• ${remote_host} is another placeholder that should be replaced with the IP address or hostname of the remote host you want to connect to. For example, if the remote host's IP address is "192.168.1.100", you would replace ${remote_host} with "192.168.1.100".

When you run this command, it will prompt you for the password associated with the specified username on the remote host. Once authenticated, an SSH session will be established, allowing you to execute commands on the remote host's command line or transfer files securely.