Interactive Commands

[Ferruccio Vitale]

Hi All,

is there a way to execute interactive command from java?
For example, I'd like to exec ssh and use stdin/stdout/stderr
like in shell.
I was not able to do it by using Runtime.exec().
Any ideas?

Regards,
Ferruccio

 

[Joona I Palaste]

Hi All,

is there a way to execute interactive command from java?
For example, I'd like to exec ssh and use stdin/stdout/stderr
like in shell.
I was not able to do it by using Runtime.exec().
Any ideas?

Runtime.exec() returns a Process, which has methods getInputStream()
and getOutputStream(). All you need is some code to connect these to
System.in and System.out, respectively.

 

[Jeff Schwab]

Runtime.exec() returns a Process, which has methods getInputStream()
and getOutputStream(). All you need is some code to connect these to
System.in and System.out, respectively.

ssh might give you a headache by wanted to be run in a terminal. The
way to get around this in other languages is typically Expect:

http://expect.nist.gov/

I'm not sure whether Expect is available for Java.

 

[Ferenc Hechler]

Hi Jeff,

You can use plink from PuTTY
http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html
I used this successfully under Windows via Runtime.exec(). It is available
for other platforms.

bye,
feri

 

[Joona I Palaste]

ssh might give you a headache by wanted to be run in a terminal. The
way to get around this in other languages is typically Expect:

I'm not sure whether Expect is available for Java.

Seeing as SSH1 and SSH2 are open protocols (at least I think they are),
there's nothing stopping someone from writing a Java class implementing
an SSH client. Actually, there is already a Java applet implementation
of SSH, known as MindTerm.