CODEWITHSUNDEEP
pythonpexpect
quester
quester

Reputation: 564

perform echo xyz | ssh ... with python

how to perform

echo xyz | ssh [host]

(send xyz to host) with python?

I have tried pexpect 

pexpect.spawn('echo xyz | ssh [host]')

but it's performing

echo 'xyz | ssh [host]'

maybe other package will be better?

Upvotes: 0

Views: 216

Answers (2)

user4815162342
user4815162342

Reputation: 155436

You don't need pexpect to simulate a simple shell pipeline. The simplest way to emulate the pipeline is the os.system function:

os.system("echo xyz | ssh [host]")

A more Pythonic approach is to use the subprocess module:

p = subprocess.Popen(["ssh", "host"],
                     stdin=subprocess.PIPE, stdout=subprocess.PIPE)
p.stdin.write("xyz\n")
output = p.communicate()[0]

Upvotes: 0

Tony Suffolk 66
Tony Suffolk 66

Reputation: 9724

http://pexpect.sourceforge.net/pexpect.html#spawn

Gives an example of running a command with a pipe : 

shell_cmd = 'ls -l | grep LOG > log_list.txt'
child = pexpect.spawn('/bin/bash', ['-c', shell_cmd])
child.expect(pexpect.EOF)

Previous incorrect attempt deleted to make sure no-one is confused by it.

Upvotes: 2

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