Question

我需要在python中使用参数执行ssh命令。我已经能够执行ssh命令。但是，我无法弄清楚，如何传递参数。

命令： ssh -L 22222：localhost：5434 sayan@155.97.73.252

以下是代码：

ssh = paramiko.SSHClient();
ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy());
ssh.connect("155.97.73.252", username="sayan", password="#####");

Answer 1

paramiko示例

 class RunCommand(cmd.Cmd):
        """ Simple shell to run a command on the host """



   prompt = 'ssh > '

    def __init__(self):
        cmd.Cmd.__init__(self)
        self.hosts = []
        self.connections = []

    def do_add_host(self, args):
        """add_host 
        Add the host to the host list"""
        if args:
            self.hosts.append(args.split(','))
        else:
            print "usage: host "

    def do_connect(self, args):
        """Connect to all hosts in the hosts list"""
        for host in self.hosts:
            client = paramiko.SSHClient()
            client.set_missing_host_key_policy(
                paramiko.AutoAddPolicy())
            client.connect(host[0], 
                username=host[1], 
                password=host[2])
            self.connections.append(client)

    def do_run(self, command):
        """run 
        Execute this command on all hosts in the list"""
        if command:
            for host, conn in zip(self.hosts, self.connections):
                stdin, stdout, stderr = conn.exec_command(command)
                stdin.close()
                for line in stdout.read().splitlines():
                    print 'host: %s: %s' % (host[0], line)
        else:
            print "usage: run "

    def do_close(self, args):
        for conn in self.connections:
            conn.close()

if __name__ == '__main__':
    RunCommand().cmdloop()
Example output:

ssh > add_host 127.0.0.1,jesse,lol
ssh > connect
ssh > run uptime
host: 127.0.0.1: 14:49  up 11 days,  4:27, 8 users,
load averages: 0.36 0.25 0.19
ssh > close

结构示例

from fabric import tasks

env.hosts = ['localhost', 'sunflower.heliotropic.us']
pattern = re.compile(r'up (\d+) days')

# No need to decorate this function with @task
def uptime():
    res = run('uptime')
    match = pattern.search(res)
    if match:
        days = int(match.group(1))
        env['uts'].append(days)

def main():
    env['uts'] = []
    tasks.execute(uptime)
    uts_list = env['uts']
    if not uts_list:
        return # Perhaps we should print a notice here?
    avg = sum(uts_list) / float(len(uts_list))
    print '-' * 80
    print 'Average uptime: %s days' % avg
    print '-' * 80

if __name__ == '__main__':
    main()

在python中执行参数的ssh命令

1 个答案: