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sasldblistusers2 [-f file] [-v]

sasldblistusers2 is used to list the users in the SASL password database (usually /etc/sasldb2). This will NOT list all the users in /etc/passwd, shadow, PAM, etc. only those created by SASL (via saslpasswd2).

use file for sasldb
Print libsasl2 version number and exit.

saslpasswd2(8)