RE: [JSch-users] Newbie - how to use for mulitple command

[Randy B. <Randy.Bowie@NetIQ.com>]

You can also look at the TelnetWrapper  object in JTA, you can download it
at javassh.org.

It's pretty easy to hack it to use jsch or just use it as a reference code.
In this case you would do the same thing you do with expect just in java
instead of TCL.

Hope this helps!

Randy

-----Original Message-----
From: jsc...@li...
[mailto:jsc...@li...]On Behalf Of Rob Meyer
Sent: Friday, August 20, 2004 8:53 AM
To: Atsuhiko Yamanaka
Cc: ben...@bi...; jsc...@li...
Subject: Re: [JSch-users] Newbie - how to use for mulitple command


Since you are doing a sudo, you may have more trouble than just
separating commands with ";". If you have the sudo rights, then make
sudo run your commands individually:
 
  command="sudo chown ${perms} foo.txt; sudo chown ${perms} bar.txt"

That will work okay. If you only have sudo to su with no arguments,
then you're in a tough spot. You won't be able to do something like:

  command="sudo su ${username}; chmod ${perms} foo.txt"

Because the first command will execute a new interactive shell, which
will wait for input indefinitely. Once it closes/ends/dies, then you
will return to the original shell which is running your ssh command,
and it will perform the rest of the command line, which is the
chmod. But it will no longer have the sudo'ed identity. If you're
allowed to run sudo su with any arguments, then you can put it on each
command:

  command="sudo -u su ${username} chmod ${perms} foo.txt; \
           sudo -u su ${username} chmod ${perms} bar.txt"

These are all sudo/unix specific things really, rather than jsch
stuff, but it's probably somewhat common usage so I figured I'd reply
to the whole list. If a password is required for sudo'ing in your
situation, you have trouble doing that as well.

The one heavy-duty tool for getting around all of this is expect
(http://expect.nist.gov. It lets you completely automated any
interactive program, so you could write a small expect script that
would do the sudo, execute your commands, and exit the shell. I've had
to do that before.

On Fri, Aug 20, 2004 at 01:46:09PM +0900, Atsuhiko Yamanaka wrote:
> Hi,
> 
>    +-From: "Benz Lim" <ben...@bi...> --
>    |_Date: Tue, 17 Aug 2004 10:25:40 +0800 ____
>    |
>    |How can we use ant task <sshexec> to carry out multiple command?
>    |for example if I need to do a sudo su after which need to enter
>    |the password and perform a change ownership command (chown) on
>    |some files
> 
> The command will be evaluated by your remote login shell interpreter.
> So, you can pass commands by concatenating them with ';' as you will
> on the command line of shell.  For example,
> 
>   command="chown ${chown.user}:${chown.grp} foo.txt ; \
>            chown ${chown.user}:${chown.grp} bar.txt"
> 
> Thanks,
> --
> ymnk
> 
> 
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-- 
Rob Meyer - http://www.evilrob.org/ - http://www.bigdis.com/
-------------------------------------------------------------------------
"Ignorance more frequently begets confidence than does knowledge." 
    -- Charles Darwin


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