Host Command from PL/SQL

Question

Hi,
We use JAVA source in Oracle to execute some unix commands directly from within stored procedures in Oracle.
Our Java source looks like this :
CREATE OR REPLACE AND RESOLVE JAVA SOURCE NAMED "HOST" AS
import java.lang.*;
import java.io.*;
public class Host
public static void executeCommand (String command, String etype) throws IOException
String[] wFullCommand = {"C:\\winnt\\system32\\cmd.exe", "/y", "/c", command};
String[] uFullCommand = {"/bin/sh", "-c", command};
if (etype.toUpperCase().equals("W"))
Runtime.getRuntime().exec(wFullCommand);
else if(etype.toUpperCase().equals("U+"))
Runtime.getRuntime().exec(uFullCommand);
else if(etype.toUpperCase().equals("U"))
Runtime.getRuntime().exec(command);
CREATE OR REPLACE PROCEDURE Host_Command (p_command IN VARCHAR2, p_etype IN VARCHAR2)
AS LANGUAGE JAVA
NAME 'Host.executeCommand (java.lang.String, java.lang.String)';
We call one unix shell script and discover that some UNIX commands from this shell script are executed and others not. A cp & touch command don't give problems whilst cat & unix2dos commands don't function.
Can anybody help me on this subject?
Thanks !
Kris

Answer 1

Thanks for your reactions. Got it to work with the unix scripts, the problem was a syntax error in the script itself.
However I don't get it to function when I try to run a unix command directly. Normally the parameter U+ should decide to start it in a shell for scripts and otherwise it should run the command directly. (whithout the /bin/sh in front of it).
I already adapted my source to try to execute the command in a new shell but without success :
String[] uFullCommand = {"/bin/sh", "-c", "\'cp /export/home/caluwaek/test/bestand2 /export/home/caluwaek/test/bestand8\'"};
I tried to put the whole command in one string, in 3 strings, to just call the cp command without bothering the shell. Nothing seems to work.
In unix both the following work :
cp /export/home/caluwaek/test/bestand2 /export/home/caluwaek/test/bestand8
and
/bin/sh -c 'cp /export/home/caluwaek/test/bestand2 /export/home/caluwaek/test/bestand8'
Thanks for your help!
Kris