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- #!/usr/bin/env python
- """This runs 'ls -l' on a remote host using SSH. At the prompts enter hostname,
- user, and password.
- $Id: sshls.py 489 2007-11-28 23:40:34Z noah $
- """
- import pexpect
- import getpass, os
- def ssh_command (user, host, password, command):
- """This runs a command on the remote host. This could also be done with the
- pxssh class, but this demonstrates what that class does at a simpler level.
- This returns a pexpect.spawn object. This handles the case when you try to
- connect to a new host and ssh asks you if you want to accept the public key
- fingerprint and continue connecting. """
- ssh_newkey = 'Are you sure you want to continue connecting'
- child = pexpect.spawn('ssh -l %s %s %s'%(user, host, command))
- i = child.expect([pexpect.TIMEOUT, ssh_newkey, 'password: '])
- if i == 0: # Timeout
- print 'ERROR!'
- print 'SSH could not login. Here is what SSH said:'
- print child.before, child.after
- return None
- if i == 1: # SSH does not have the public key. Just accept it.
- child.sendline ('yes')
- child.expect ('password: ')
- i = child.expect([pexpect.TIMEOUT, 'password: '])
- if i == 0: # Timeout
- print 'ERROR!'
- print 'SSH could not login. Here is what SSH said:'
- print child.before, child.after
- return None
- child.sendline(password)
- return child
- def main ():
- host = raw_input('Hostname: ')
- user = raw_input('User: ')
- password = getpass.getpass('Password: ')
- child = ssh_command (user, host, password, 'ls -al')
- child.expect(pexpect.EOF)
- print child.before
- if __name__ == '__main__':
- try:
- main()
- except Exception, e:
- print str(e)
- traceback.print_exc()
- os._exit(1)
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