ldapadd(1) -x -D cn=admin,dc=ict -W -f /tmp/daten.ldif
LDAP modify entry and LDAP add entry tools
-x     Use simple authentication instead of SASL.
-D binddn
       Use the Distinguished Name binddn to bind to the LDAP directory.  For SASL binds,  the  server  is
       expected to ignore this value.
-W     Prompt  for simple authentication.  This is used instead of specifying the password on the command
       line.
-f file
       Read the entry modification information from file instead of from standard input.
source manpages: ldapadd