Hi guys,

I have this problem echoing values of 22.9% and such number with % to a file. Here is my script:

#!/bin/bash

let freeMB=`free -m | tail -2 | head -1 | awk '{print $4}'`
cpus=($(top -n 1))

[ -f /tmp/$1 ] && rm /tmp/$1

echo $freeMB >> /tmp/$1 #free Mem
echo ${cpus[48]} >> /tmp/$1
echo ${cpus[56]} >> /tmp/$1
echo "hello"
echo ${cpus[64]} >> /tmp/$1
echo ${cpus[72]} >> /tmp/$1
=======================================

freeMB's value and "hello" are echoed to /tmp/somefile

but values ${cpu[index]} aren't echoed to /tmp/somefile. However, they are echoed to screen.
Is it true that the value of cpu such as: 30.0% causes such problem because of the "%" ?
Is there any way to echo those values to a file?

thank you for your time.

Actually, I invoke that script above from a java file. That causes problem with the echoing of array cpu.
But if i was to run the script directly, it's fine.

through java, the script is called and it is supposed to echo all values that i wanted to a file, but it only does some and ignore those values of array.

How are you calling it? Are you using some sort of system execute call to execute a .sh file?

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.DataInputStream;
import java.io.FileInputStream;
public class TokString
{

public static void main(String[] args)
{
try
{
String fileName="out" + System.currentTimeMillis()+".log";
Process P = Runtime.getRuntime().exec("getResource " + fileName );

int result = P.waitFor();
FileInputStream ins = new FileInputStream( fileName);
DataInputStream in = new DataInputStream(ins);

while( in.available() != 0 )
{
System.out.println(in.readLine());
}
}
catch (IOException e)
{
e.printStackTrace();
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

}
}

I know my Proccess call work, because it was able to read the data out of the file. The problem here is, the getResource doesn't echo values of my array to the destined file; it echos everything else. When I open the output file, I only see regular string like "hello", but not the values of array.
If I was to run getResource directly w/o going through java, then it works fine.

Are you taking into account that your script writes it out to /tmp/$i and your java program is reading from the current directory for the file that was output? It seems to work for me if I make the script write to the current directory.

the script will send its output to a file
my java program will read that output

some how the output is missing the values of array. I suspect that, the command "top -n 1" within the script return output to a different console, that's why my array didn't get the values back from "top -n 1". And that's why no values of the array were sent to output fie

Try "top -b -n 1" to make top run in batch mode.

It seems to run correctly with that. It should also produce cleaner output since it doesn't output any ASCII color codes.

IT'S THE ONE.....THANK YOU VERY MUCH..!!!