1. Try to run the program using the following command: sh scanner.sh 2. If it still has a permission error, you may have an older version of the program. Please try to open the vi editor and change the file to this : -------begin----------- while [ true ] do `echo --Date-- >> /home/user/EncounterTrace.txt` `date >> /home/user/EncounterTrace.txt` `echo --BlueTooth-- >> /home/user/EncounterTrace.txt` `btsearch -t >> /home/user/EncounterTrace.txt` sleep 90 done -----END------------------- 3. You can come to E401 and we can do it for you.