bridge -V (return code: 0)
bridge utility, 0.0
bridge --help (return code: 255)
Usage: bridge [ OPTIONS ] OBJECT { COMMAND | help }
bridge [ -force ] -batch filename
where OBJECT := { link | fdb | mdb | vlan | monitor }
OPTIONS := { -V[ersion] | -s[tatistics] | -d[etails] |
-o[neline] | -t[imestamp] | -n[etns] name |
-c[ompressvlans] }