# update: 2022-4-25-18
import subprocess


def run_command(command, callback=False):
    """
    执行shell命令
    """
    if callback:
        obj = subprocess.Popen(command, shell=True, stdout=subprocess.PIPE)
        lines = obj.stdout.readlines()
        if len(lines) == 1:
            lines = str(lines[0], encoding='utf-8').strip('\n')
        return lines
    else:
        return subprocess.Popen(command, shell=True)


if __name__ == '__main__':
    out = run_command('/home/server/resources/vms-files', callback=True)
    print(out)