Nécessite l’installation préablable du paquet expect.

#!/bin/bash

# beacon-scan.sh

# Displays beacons including duplicates in real time.

# Uses expect to automate interaction with bluetoothctl. -> sudo apt-get install expect

# Uses sed to remove bluetoothctl colorization escape characters.

# Uses grep to filter out beacon manufacturer data logging.

# Uses Perl to prefix each beacon with a timestamp.

if [ "$(id -u)" != "0" ]; then

echo "ERROR: must run as root"

exit 1

fi

(cat <<'END' | /usr/bin/expect

set Prompt "#"

set timeout -1

spawn bluetoothctl

expect -re $Prompt

send "scan off\r"

expect -re $Prompt

send "remove *\r"

expect -re $Prompt

send "set-scan-filter-clear\r"

expect -re $Prompt

send "set-scan-filter-transport le\r"

expect -re $Prompt

send "scan on\r"

trap {

expect -re $Prompt

send "scan off\r"

expect -re $Prompt

send "remove *\r"

expect -re $Prompt

send "quit\r"

} SIGINT

expect eof

END

) | sed --unbuffered --quiet --expression 's/^.*Device //p' \

| grep --line-buffered -v ManufacturerData \

| perl -nle 'print scalar(localtime), " ", $_'