htpasswd - Manage user files for basic authentication
[SYNOPSIS] htpasswd OPTION PASSWORDFILE USER PASSWORD
option
-c Create the passwdfile. If passwdfile already exists, it is rewritten and truncated
-b Use batch mode; i.e., get the password from the command line rather than prompting for it
-n Display the results on standard output rather than updating a file
-m Use MD5 encryption for passwords
-d Use crypt() encryption for passwords (default)
-s Use SHA encryption for passwords
-p Use plaintext passwords
-D Delete user