Reputation: 24184
Below is the program that I am using to ssh to one of the remote servers and its working fine.
My question is- Is there any way I can execute the shell scripts that I have on my windows machine
on the remote server?
If Yes? then how I can modify my below code to execute the shell scripts on the remote server that I am trying to connect.
public class SampleTest{
public static void main(String[] arg){
try{
JSch jsch=new JSch();
String host=null;
if(arg.length>0){
host=arg[0];
}
else{
host=JOptionPane.showInputDialog("Enter username@hostname",
System.getProperty("user.name")+
"@lvsaishdc3in0001.lvs.host.com");
}
String user=host.substring(0, host.indexOf('@'));
host=host.substring(host.indexOf('@')+1);
Session session=jsch.getSession(user, host, 22);
String passwd = JOptionPane.showInputDialog("Enter password");
session.setPassword(passwd);
UserInfo ui = new MyUserInfo(){
public void showMessage(String message){
JOptionPane.showMessageDialog(null, message);
}
public boolean promptYesNo(String message){
Object[] options={ "yes", "no" };
int foo=JOptionPane.showOptionDialog(null,
message,
"Warning",
JOptionPane.DEFAULT_OPTION,
JOptionPane.WARNING_MESSAGE,
null, options, options[0]);
return foo==0;
}
};
session.setUserInfo(ui);
//session.connect();
session.connect(30000); // making a connection with timeout.
Channel channel=session.openChannel("shell");
// Enable agent-forwarding.
//((ChannelShell)channel).setAgentForwarding(true);
channel.setInputStream(System.in);
/*
// a hack for MS-DOS prompt on Windows.
channel.setInputStream(new FilterInputStream(System.in){
public int read(byte[] b, int off, int len)throws IOException{
return in.read(b, off, (len>1024?1024:len));
}
});
*/
channel.setOutputStream(System.out);
/*
// Choose the pty-type "vt102".
((ChannelShell)channel).setPtyType("vt102");
*/
/*
// Set environment variable "LANG" as "ja_JP.eucJP".
((ChannelShell)channel).setEnv("LANG", "ja_JP.eucJP");
*/
//channel.connect();
channel.connect(3*1000);
}
catch(Exception e){
System.out.println(e);
}
}
public static abstract class MyUserInfo
implements UserInfo, UIKeyboardInteractive{
public String getPassword(){ return null; }
public boolean promptYesNo(String str){ return false; }
public String getPassphrase(){ return null; }
public boolean promptPassphrase(String message){ return false; }
public boolean promptPassword(String message){ return false; }
public void showMessage(String message){ }
public String[] promptKeyboardInteractive(String destination,
String name,
String instruction,
String[] prompt,
boolean[] echo){
return null;
}
}
}
Upvotes: 1
Views: 11631
Reputation: 8487
You can execute the scripts without even copying them to remote server. Invoke a bash shell and pipe the commands from shell script to the remote process ( bash
in this case ).
So, here is a simple script echo "Hi there!"; env
. Now we can run this script like this:
$ echo 'echo "Hi there!"; env' | ssh localhost bash
tuxdna@localhost's password:
Hi there!
XDG_SESSION_ID=10
SHELL=/bin/bash
SSH_CLIENT=127.0.0.1 43064 22
USER=tuxdna
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games
MAIL=/var/mail/tuxdna
PWD=/home/tuxdna
LANG=en_IN
HOME=/home/tuxdna
SHLVL=2
LANGUAGE=en_IN:en
LOGNAME=tuxdna
SSH_CONNECTION=127.0.0.1 43064 127.0.0.1 22
XDG_RUNTIME_DIR=/run/user/1000
_=/usr/bin/env
Essentially you have to write the shell script to STDIN
of the remote process.
Upvotes: 2
Reputation: 347334
Yes, but probably not in the way you are thinking.
You need to copy the script over to the remote system.
Check out http://seancode.blogspot.com.au/2008/02/jsch-scp-file-in-java.html who's written a FileSender
wrapper that might help
You could also check out Copying a file in sftp with jsch library just out of interest
You could also check out the included examples http://www.jcraft.com/jsch/examples/ (knew they were there somewhere)
Upvotes: 0