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require 'open3' | |
def log s | |
p Time.now.to_s + " #{s}" | |
end | |
def is_device_there?(mac_addr) | |
exit_status = -1 | |
Open3.popen3("sudo l2ping -c1 -v #{mac_addr}") do |stdin, stdout, stderr, wait_thr| | |
exit_status = wait_thr.value |