prosodyctl:tldr:68be7

This command is used to change the password for a user in the Prosody XMPP server configuration. Here is an explanation of each part of the command:

• sudo: It stands for "superuser do" and allows the command to be executed with administrative privileges. This is usually required for making changes to system configurations.

• prosodyctl: It is a command-line tool used for managing the Prosody XMPP server. In this case, it is used to interact with the server's user accounts.

• passwd: It is a subcommand of prosodyctl used to change the password for a specific user.

• ${user@example-com}: This is a placeholder indicating that you should replace it with the actual username you want to change the password for. In the example, it suggests using the format user@example-com, where user is the username and example-com is the XMPP domain of the server.

To use this command, replace ${user@example-com} with the specific user you want to change the password for, and execute it with administrative privileges. You will be prompted to enter a new password for the user.