def get_latest_UTC():
    cmd = (('ls -1d -rt ' + conf.results_dir) + "/20* | tail -1 | awk -F/ '{print $5}'")
    utc = S.Popen(cmd, shell=True, stdout=S.PIPE).communcate()[0].strip()
    return utc
def get_latest_UTC():
    cmd = (('ls -1d -rt ' + conf.results_dir) + "/20* | tail -1 | awk -F/ '{print $5}'")
    utc = S.Popen(cmd, shell=True, stdout=S.PIPE).communcate()[0].strip()
    return utc