In article <mailman.16944.1418561416.18130.python-l...@python.org>,
"????" <1248283...@qq.com> wrote:
> I want to delete the file "names.txt" if it exits in "/home/names.txt" in my
> remote vps server.
> import paramiko
> host = "vps ip"
> port = 22
> transport = paramiko.Transport((host, port))
> password = "key"
> username = "root"
> transport.connect(username = username, password = password)
> sftp = paramiko.SFTPClient.from_transport(transport)
> if "names.txt" in sftp.listdir("/home") : sftp.remove("/home/names.txt")
>
>
> Is there more elegant way to do the same work?
I generally try to avoid using raw paramiko. Fabric gives you a much
nicer interface to the same basic functionality (and is indeed layered
on top of paramiko). The above functionality can be expressed in fabric
as simply as:
---------------------------------------------
from fabric.api import env, run
env.host_string = "my-remote-hostname"
run("rm -f /tmp/roy-temp")
---------------------------------------------
Of course, I cheated a little bit. I'm assuming you have ssh access to
your remote host; the above code depends on that. Going through sftp
makes everything more difficult. You can drive sftp through fabric, but
it's a lot more painful. I also assume that you can use ssh key
authentication, which simplifies everything compared to passing
usernames and passwords around.
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