python执行Linux命令

 

Linux命令执行方法函数封装：

本地执行命令：

def exe_cmd(cmd):
    p = subprocess.Popen(cmd, shell=True, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
    while True:
        next_line = p.stdout.readline()
        return_line = next_line.decode("utf-8", "ignore")
        if return_line == '' and p.poll() != None:
            break
        print(return_line)
    stdout, stderr = p.communicate()
    if p.returncode != 0:
        return False
    return True

 

paramiko远程执行，字符串返回方式：

class SSH:
    def __init__(self, hostname, port, username, password):
        self.c = paramiko.SSHClient()
        self.c.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        self.c.connect(hostname, port, username, password, timeout=80)
    def __del__(self):
        self.c.close()
    def exec_cmd(self, command, print2=False):
        stdin, stdout, stderr = self.c.exec_command(command)
        return stdout.readlines()

 

paramiko远程执行，实时标准输出：

class SSH:
    def __init__(self, hostname, port, username, password):
        self.c = paramiko.SSHClient()
        self.c.set_missing_host_key_policy(paramiko.AutoAddPolicy())
        self.c.connect(hostname, port, username, password, timeout=80)
    def __del__(self):
        self.c.close()
    def exec_cmd(self, command, print2=False):
        stdin, stdout, stderr = self.c.exec_command(command)
        while True:
            line = stdout.readline()
            if not line:
                break
            print(line)