如何使用 SSH 在 Python 中远程执行脚本? [英] How to execute a script remotely in Python using SSH?

问题描述

def execute(self,command):
            to_exec = self.transport.open_session()
            to_exec.exec_command(command)
            print 'Command executed'
connection.execute("install.sh")

当我检查远程系统时，我发现脚本没有运行.有什么线索吗?

When I check the remote system, I found the script didn't run. Any clue?

推荐答案

下面的代码会做你想做的，你可以将它调整到你的 execute 函数:

The code below will do what you want and you can adapt it to your execute function:

from paramiko import SSHClient
host="hostname"
user="username"
client = SSHClient()
client.load_system_host_keys()
client.connect(host, username=user)
stdin, stdout, stderr = client.exec_command('./install.sh')
print "stderr: ", stderr.readlines()
print "pwd: ", stdout.readlines()

但请注意，该命令将默认为您的 $HOME 目录，因此您需要在 $PATH<中有 install.sh/code> 或(很可能)您需要 cd 到包含 install.sh 脚本的目录.

Note, though, that commands will default to your $HOME directory, so you'll either need to have install.sh in your $PATH or (most likely) you'll need to cd to the directory that contains the install.sh script.

您可以通过以下方式检查默认路径:

You can check your default path with:

stdin, stdout, stderr = client.exec_command('getconf PATH')
print "PATH: ", stdout.readlines()

但是，如果它不在您的路径中，您可以cd并像这样执行脚本:

However, if it is not in your path you can cd and execute the script like this:

stdin, stdout, stderr = client.exec_command('(cd /path/to/files; ./install.sh)')
print "stderr: ", stderr.readlines()
print "pwd: ", stdout.readlines()

如果脚本不在您的$PATH 中，您将需要使用 ./install.sh 而不是 install.sh，就像你在命令行上一样.

If the script is not in your$PATH you'll need to use ./install.sh instead of install.sh, just like you would if you were on the command line.

如果您在完成上述所有操作后仍然遇到问题，也可以检查 install.sh 文件的权限:

If you are still having problems after everything above it might also be good to check the permissions of the install.sh file, too:

stdin, stdout, stderr = client.exec_command('ls -la install.sh')
print "permissions: ", stdout.readlines()

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