Runtime might not recognize Unix pipe, you need to do it like:
Process p = Runtime.getRuntime().exec(new String[] {"/bin/sh","-c", "tnsping
emsd | grep Host"});
Richard Ji
-----Original Message-----
Sent: Monday, December 09, 2002 11:29 AM
To: Multiple recipients of list ORACLE-L
Good Morning.
I am trying to get the output of a server process executed by java
via Runtime.exec(). Here's the code:
import java.sql.*;
import java.io.*;
public class ip {
public static void main (String args []) {
Runtime r = Runtime.getRuntime();
try {
String sid = "emsd";
String cmd1 = "tnsping " + sid + " | grep 'Host' | cut -d' ' -f18 |
cut -d')' -f1";
System.out.println(cmd1);
Process p = Runtime.getRuntime().exec(cmd1);
int exitValue = p.waitFor();
System.out.println(p);
BufferedReader br = new BufferedReader(new
InputStreamReader(p.getInputStream()));
String ip = br.readLine();
System.out.println(ip);
} catch (Exception e) {
System.out.println("Generic Exception catch.");
}
} // end of main()
}
When I execute it I get:
tnsping emsd | grep 'Host' | cut -d' ' -f18 | cut -d')' -f1
java.lang.UNIXProcess@5988f
The output of the command line is:
128.100.1.140
Anyone see what I'm missing?
Just to make this somewhat oracle related...this is part of a hot backup
script.
I am trying to grep the ip (and ultimately port) of the listener so I can
dynamically generate the connect to the database. :)
Thanks,
John P Weatherman
Database Administrator
Replacements Ltd.
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: John Weatherman
INET: [EMAIL PROTECTED]
Fat City Network Services -- 858-538-5051 http://www.fatcity.com
San Diego, California -- Mailing list and web hosting services
---------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from). You may
also send the HELP command for other information (like subscribing).
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Richard Ji
INET: [EMAIL PROTECTED]
Fat City Network Services -- 858-538-5051 http://www.fatcity.com
San Diego, California -- Mailing list and web hosting services
---------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB ORACLE-L
(or the name of mailing list you want to be removed from). You may
also send the HELP command for other information (like subscribing).
