Question

I have a shell script like this.

 #!/bin/sh

s=$1
pro=`ps -ef | grep $s | grep -v grep | grep -v test3.sh`
pro1=`ps -ef | grep $s | grep -v grep | grep -v test3.sh | wc -l`

echo $pro
echo $pro1

if [ $pro1 -eq 0 ]
    then
            echo "Service $s is DOWN..."
            echo "Service $s is DOWN..." >> processlogs.txt
            echo "Starting Service $s..."
            echo "Starting Service $s..." >> processlogs.txt
            java -jar clientApplication.jar "$s" &
            exit 0

    else
            echo "Service $s is Running..."
            echo "Service $s is Running..." >> processlogs.txt

   fi

Now I want the value of $s to java program. What should I do for this. Thanks.

Answer 1

This…

Process p = Runtime.exec("myExeOrShellScript");
BufferedReader r = new BufferedReader(new InputStreamReader(p.getInputStream()));
String line;
while ((line = r.readLine())!=null) {
  // got the output in 'line' do something with it
}
r.close();

whatever you pump out in your shell script with echo will end up in the java program.