Don't require sed to support the -r option.

Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

diff --git a/tools/examples/network-bridge b/tools/examples/network-bridge
index c1cc1ccf8733d3372c6bb628a42ff59b90461a25..9482b068a2d5c22621b14776517d4301ee05ee38 100755 (executable)
--- a/tools/examples/network-bridge
+++ b/tools/examples/network-bridge
@@ -59,7 +59,7 @@ dir=$(dirname "$0")
 findCommand "$@"
 evalVariables "$@"
 
-vifnum=${vifnum:-$(ip route list | awk '/^default / { print $NF }' | sed -r 's/[^0-9]+//')}
+vifnum=${vifnum:-$(ip route list | awk '/^default / { print $NF }' | sed 's/^[^0-9]*//')}
 bridge=${bridge:-xenbr${vifnum}}
 netdev=${netdev:-eth${vifnum}}
 antispoof=${antispoof:-no}