Set a user's sasl password
saslpasswd2 [-p] [-d] [-c] [-n] [-ffile] [-udomain] [-aappname] [-v] userid
saslpasswd2 is used by a server administrator to set a user's sasl password for server programs and SASL mechanisms which use the standard libsasl database of user secrets.
-p
Pipe mode - saslpasswd2 will neither prompt for the password nor verify that it was entered correctly. This is the default when standard input is not a terminal.
-c
Creates an entry for the user if the user doesn't already exist. This is mutually exclusive with the -d (delete user) flag.
-d
Deletes the entry for the user. This is mutually exclusive with the -c (create user) flag.
-n
Don't set the plaintext userPassword property for the user. Only mechanism-specific secrets will be set (e.g. OTP, SRP)
-u domain
use domain for user domain (realm).
-f file
use file for sasldb
-a appname
use appname as application name.
-v
Print libsasl2 version number and exit.
rfc4422 - Simple Authentication and Security Layer (SASL)