x2/src/bash/exe/khatus_sensor_bluetooth.sh

   1 #! /bin/sh
   2
   3 set -e
   4
   5 # TODO: Centralize the definitions of the constants, as in AWK code.
   6 FS1='|'  # Fields separator, level 1 (a record's fields)
   7 FS2=':'  # Fields separator, level 2 (a field's subfields)
   8
   9 count_powered_controllers() {
  10     bluetoothctl -- show | grep -c 'Powered: yes'
  11 }
  12
  13 count_connected_devices() {
  14     bluetoothctl -- paired-devices \
  15     | awk '{print $2}' \
  16     | xargs -I % bluetoothctl -- info % \
  17     | grep -c 'Connected: yes'
  18 }
  19
  20 printf "%s%s%d\n" 'count_powered_controllers' "$FS1" "$(count_powered_controllers)"
  21 printf "%s%s%d\n" 'count_connected_devices'   "$FS1" "$(count_connected_devices)"