ssl:key-command:change

This command is used for generating a new SSH key pair and setting a comment for the public key generated. Let's break it down:

• ssh-keygen: This is the command used to generate SSH keys.
• -c: This option is used to request a comment when generating the key. It prompts the user to enter a comment for the key. In the provided command, it is combined with the next option using the -C flag.
• -C "${new_comment}": This option specifies the comment to be associated with the key. "${new_comment}" is a variable placeholder that should be replaced with the actual comment you desire for the key. The comment provides additional information about the key, such as the user's name or purpose of the key. You can include spaces in the comment by wrapping it in double quotes.
• -f ${ssh_key_path}: This option sets the file name to save the generated key. ${ssh_key_path} is another variable placeholder that should be replaced with the desired file path where you want to save the key. Typically, the key pair consists of a private key and a public key. The private key is saved in the specified path, while the public key will have the same name with ".pub" appended to it and is saved in the same directory.

To use this command properly, you should replace ${new_comment} with your desired comment and ${ssh_key_path} with the desired path for the generated key.