Verify a file exists over ssh

Question

I am trying to test if a file exists over SSH using pexpect. I have got most of the code working but I need to catch the value so I can assert whether the file exists. The c

Answer 1

I don't have any pexpect experience but looking at their web page it looks like you can call the expect method with multiple values and it returns the index of the one that it matches (this is based purely on me just looking at this example).

child.expect('password:')
child.sendline (my_secret_password)
# We expect any of these three patterns...
i = child.expect (['Permission denied', 'Terminal type', '[#\$] '])
if i==0:
    print 'Permission denied on host. Can't login'
    child.kill(0)
elif i==2:
    print 'Login OK... need to send terminal type.'
    child.sendline('vt100')
    child.expect ('[#\$] ')
elif i==3:
    print 'Login OK.'
    print 'Shell command prompt', child.after

Actually, you're already using that functionality at the top.

So you want to catch whether the file exists or not?...

Try this...

        p.sendline('[ -f email_tidyup.sh ] && echo "File exists" || echo "File does not exists"')
        file_exists = {0: True, 1: False}[p.expect(('File Exists', 'File does not exists'))]