problem in executing unix script from java

Thread view:

ruds - 27 Dec 2006 11:29 GMT

hello,
I want to find out how much free disk space is present for a particular
directory in unix system.
For this I'm executing command :
p=r.getRuntime().exec("rsh "+machine[i]+" \"cd /scratch; df -k .\" |
awk '{print $3}' ");

but, the '-' sign of df -k and the single quotes for print do not get
exceuted and hence I'm not able to get a proper o/p.

can anyone tell me how to execute it?

Reply to this Message

Gordon Beaton - 27 Dec 2006 13:37 GMT

> For this I'm executing command :
> p=r.getRuntime().exec("rsh "+machine[i]+" \"cd /scratch; df -k .\" |
[quoted text clipped - 4 lines]
>
> can anyone tell me how to execute it?

Try it like this instead, using an array to group the command
arguments properly:

String[] cmd = { "rsh",
machine[i],
"cd /scratch; df -k . | awk '{print $3}'"
};

p = r.getRuntime.exec(cmd);

/gordon

Signature

[ don't email me support questions or followups ]
g o r d o n + n e w s @ b a l d e r 1 3 . s e

Reply to this Message

ruds - 29 Dec 2006 05:27 GMT

Thanks, It did help me.

Reply to this Message

Free Magazines

Get these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...