-echo before execscript.sub: "$@"
-echo calling execscript.sub
-./execscript.sub aa bb cc dd ee
-echo after execscript.sub with args: $?
-./execscript.sub
-echo after execscript.sub without args: $?
+echo before exec1.sub: "$@"
+echo calling exec1.sub
+./exec1.sub aa bb cc dd ee
+echo after exec1.sub with args: $?
+./exec1.sub
+echo after exec1.sub without args: $?