+[ $# = 0 ] && { echo " $0 <group>"; exit; }
+[ "x$1" = "x-a" ] && {
+ config_cb() {
+ [ interface != "$1" -o -z "$2" ] || eval "$0 $2"
+ }
+ config_load network
+ exit
+}
+
+config_load /var/state/network
+
+# remove the interface's network state
+FILE=/var/state/network.$$
+grep -v "^config_set '$1' " /var/state/network > "$FILE"
+mv "$FILE" /var/state/network
+