nyni funguje i v shellu s aktivnim set -u

diff --git a/bash/serial_loopback_test.sh b/bash/serial_loopback_test.sh
index 0b16fe7fa690ee93261288543a64b6f16c6f3455..e9ab56910e09f877d632fb4931f54f179bc4bb60 100755 (executable)
--- a/bash/serial_loopback_test.sh
+++ b/bash/serial_loopback_test.sh
@@ -7,8 +7,8 @@
 
 function serial_loopback_test() {
 
-unset port_tx
-unset port_rx
+port_tx=
+port_rx=
 trylimit=0
 seconds=0
 baudrate=115200