How can I programmatically send a blank password?

Question

I have a shell script that checks out a subversion repo. The connection asks for a password (I know it's an unnecessary layer since the password is blank), but how can I send a blank password to subversion?

#!/bin/sh

svn co svn://server/repo ~/Desktop/data

This then sends a password prompt to the terminal, is there a way to automatically respond in my script with a blank password?

@dannrob I read that thread, but they don't address handling a blank password. I tried using empty quotes but that didn't work. I still get prompted when using `--password ""` — nullByteMe, Jun 20 '13 at 12:14
Have you tried redirecting a file consisting just of newlines into it? So, create a text file which is just blank lines and then run your command like svn co svn://server/repo ~/Desktop/data < blanklines.txt — matt freake, Jun 20 '13 at 12:14

score 5 · Accepted Answer · edited Jun 20 '13 at 12:33

5

Try specifying password using the following option:

--password ''

edited Jun 20 '13 at 12:33

nullByteMe

6,141
13
62
99

answered Jun 20 '13 at 12:14

dannrob

1,061
9
10

I lied, this worked. I tried it a long time ago and this did not resolve my issue. I guess maybe I put the switch in the wrong place. Thanks! – nullByteMe Jun 20 '13 at 12:21

score 1 · Answer 2 · edited May 23 '17 at 11:50

1

I really don't recommend doing it like that, but a more generic way would be the use of expect:

How to give password in shell script?

edited May 23 '17 at 11:50

Community

1
1

answered Jun 20 '13 at 12:29

Rob

11,492
14
59
94

How can I programmatically send a blank password?

2 Answers2