/usr/share/dirsrv/script-templates/template-db2ldif is in 389-ds-base 1.3.7.10-1ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 | #!/bin/sh
cwd=`pwd`
{{SERVERBIN-DIR}}/db2ldif "$@" -Z {{SERV-ID}} -c $cwd
exit $?
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