Ricardo Fixed the way by which tst_resm should be called from Shell Test Script
diff --git a/runtest/tcp_cmds b/runtest/tcp_cmds
index 4f87e02..8c1494e 100644
--- a/runtest/tcp_cmds
+++ b/runtest/tcp_cmds
@@ -9,7 +9,7 @@
 host host01
 netstat netstat01
 perf_lan export TCbin=$LTPROOT/testcases/network/tcp_cmds/perf_lan; perf_lan
-ping ping01
+ping export LTPROOT; ping01
 rcp export TCbin=$LTPROOT/testcases/network/tcp_cmds/rcp; rcp01
 rdist export TCbin=$LTPROOT/testcases/network/tcp_cmds/rdist; rdist01
 rlogin rlogin01