ONOS-737: regexp for grabbing OC* variables changed

Change-Id: Id5651ffb41230a39c6ed68e1605feaf3c0aa337b
diff --git a/tools/test/bin/onos-push-bits-through-proxy b/tools/test/bin/onos-push-bits-through-proxy
index e060a47..21cbddf 100755
--- a/tools/test/bin/onos-push-bits-through-proxy
+++ b/tools/test/bin/onos-push-bits-through-proxy
@@ -14,7 +14,7 @@
 echo "Pushing to proxy $node..."
 onos-push-bits $node
 
-others=$(env | sort | egrep "OC[0-9]+" | cut -d= -f2 | grep -vE "^$OCT\$")
+others=$(env | sort | egrep "^OC[0-9]+" | cut -d= -f2 | grep -vE "^$OCT\$")
 
 for other in $others; do
     echo "Pushing to $other..."