This is a simple script that kill every process linked to samba, and run
samba again.
kill -KILL `ps -ef | grep samba | awk '{print $2}'` 2>/dev/null
/usr/local/samba/bin/smbd -D
/usr/local/samba/bin/nmbd -D
But, if you change the smb.conf file, samba will re-read it with no problem.
-C. Dumont