Как прочитать журнал systemd из файла?

-D, --directory=
           Takes a directory path as argument. If specified journalctl will
           operate on the specified journal directory instead of the default
           runtime and system journal paths.

systemd-journalctl [OPTIONS...] {COMMAND} ...

Send control commands to or query the journal.

  -h --help           Show this help
     --version        Show package version
     --no-pager       Do not pipe output into a pager
  -a --all            Show all fields, including long and unprintable
  -f --follow         Follow journal
  -n --lines=INTEGER  Journal entries to show
     --no-tail        Show all lines, even in follow mode
  -o --output=STRING  Change journal output mode (short, short-monotonic,
                      verbose, export, json, cat)
  -q --quiet          Don't show privilege warning
     --new-id128      Generate a new 128 Bit id