How To Check Samba Configuration Is Correct?

NAME
       testparm - check an smb.conf configuration file for internal
       correctness

SYNOPSIS
       testparm [-s] [-h] [-v] [-L <servername>] [-t <encoding>]
        {config filename} [hostname hostIP]

DESCRIPTION
       This tool is part of the samba(7) suite.

       testparm is a very simple test program to check an smbd(8)
       configuration file for internal correctness. If this program reports
       no problems, you can use the configuration file with confidence that
       smbd will successfully load the configuration file.

       Note that this is NOT a guarantee that the services specified in the
       configuration file will be available or will operate as expected.

       If the optional host name and host IP address are specified on the
       command line, this test program will run through the service entries
       reporting whether the specified host has access to each service.

       If testparm finds an error in the
        smb.conf file it returns an exit code of 1 to the calling program,
       else it returns an exit code of 0. This allows shell scripts to test
       the output from testparm.