problem in executing unix script from java

[ruds]

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+" \"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?

 

[Gordon Beaton]

For this I'm executing command :
p=r.getRuntime().exec("rsh "+machine+" \"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?

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

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


p = r.getRuntime.exec(cmd);

/gordon

 

[ruds]

Thanks, It did help me.