It's not clear to me if you get an error or if you just get
no result. So I can give just general hints:
- Use the complete path to ifconfig
It should cause an exeption if you omit the pat and the
command is not found.
- The user that runs tomcat must have the right to call ifconfig
It should cause an exeption if he hasn't.
- You have to read in loop:
InputStream out=new BufferedInputStream(p.getInputStream());
String mLine;
while ((mLine = out.readLine()) != null) {
...
}
- You have to wait until the command is ready after the read.
p.waitFor();
> -----Original Message-----
> From: Philippe Valle [mailto:[EMAIL PROTECTED]
> Sent: Friday, January 16, 2004 10:01 AM
> To: Tomcat Users List
> Subject: getRuntime().exec(...) root command problem
>
> but for root command like 'ifconfig' i have nothing
> try
> {
> Process p=Runtime.getRuntime().exec("/bin/sh");
> OutputStream in=p.getOutputStream();
> in.write(cmd.getBytes());
> in.flush();
> InputStream out=new BufferedInputStream(p.getInputStream());
> byte[] b=new byte[1024];
> int n=out.read(b);
> for(i=0;i<n;i++) System.out.print((char)b[i]);
>
> }
> catch(Exception ex) {
> }
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