#http://www.openldap.org/software/man.cgi?query=slapcat&apropos=0&sektion=0&manpath=OpenLDAP+2.4-Release&format=html
#cn=authinfo,dc=buct,dc=edu,dc=cn
slapcat -a "(entryDN:dnSubtreeMatch:=ou=authinfo,dc=buct,dc=edu,dc=cn)" -l authinfo.ldif