change the password of an LDAP entry

-D binddn
       Use  the  Distinguished  Name binddn to bind to the LDAP directory.  For SASL binds, the server is
       expected to ignore this value.

-x     Use simple authentication instead of SASL.

-W     Prompt for bind password.  This is used instead of specifying the password on the command line.

-S     Prompt for new password.  This is used instead of specifying the password on the command line.