find fibre interfaces using ethtool

diff --git a/net/ip-link-fibre b/net/ip-link-fibre
new file mode 100755 (executable)
index 0000000..da214a6
--- /dev/null
+++ b/net/ip-link-fibre
@@ -0,0 +1 @@
+ip link | grep UP | grep ' e[^ ]*:' | grep -v @ | cut -d: -f2 | xargs -i sh -c 'ethtool {} | grep FIBRE | sed "s/^.*FIBRE.*$/{}/" '