diff --git a/test/test.bash b/test/test.bash
index 28d482f..a2a8991 100755
--- a/test/test.bash
+++ b/test/test.bash
@@ -16,20 +16,23 @@ ng() {
 
 res=0
 
-# Parrot-node
-(ros2 run robosys2023ros parrot > /tmp/robosys2023ros.log)&
+touch test.log
 
+# Parrot-node
+(ros2 run robosys2023ros parrot > test.log)&
 # Human-node
 {
- (sleep 5 && echo "aiueo" && sleep 1 && echo "123456789" && sleep 1 && echo "a1b2c3d4e5") |  ros2 run robosys2023ros human
+ (echo "aiueo"; sleep 1; echo "123456789"; sleep 1; echo "a1b2c3d4e5") |  ros2 run robosys2023ros human
 }
 
+sleep 20
 
 # Parrot-log
-cat /tmp/robosys2023ros.log | grep 'aiueo' || ng ${LINENO}
-cat /tmp/robosys2023ros.log | grep '123456789' || ng ${LINENO}
-cat /tmp/robosys2023ros.log | grep 'a1b2c3d4e5' || ng ${LINENO}
+cat test.log | grep 'aiueo' || ng ${LINENO}
+cat test.log | grep '123456789' || ng ${LINENO}
+cat test.log | grep 'a1b2c3d4e5' || ng ${LINENO}
 
+rm test.log
 echo ""
 [ "$res" = 0 ] && echo "OK"
 exit $res