#!/bin/sh

SLEEP=0.150

get_focus() {
RES=$(sample_af 0 c & sleep $SLEEP; killall sample_af)
RST=`echo ${RES} | awk '{print $1}'`
echo $RST
}

CR_L=$(get_focus)
if [[ $CR_L -lt 300 ]]
 then
  curz
fi
baf

CR_L=$(get_focus)

if [[ $CR_L -lt 300 ]]
  then
  baf
fi