import java.util.*;
import java.io.*;
import java.util.regex.*;
import java.util.List;
 
class Program {
public static void main (String[] args) throws java.lang.Exception	{
 
String subject = "test/$name$/something";
String replace = "foo_bar";
Pattern regex = Pattern.compile("(\\$).*?(\\$)");
Matcher m = regex.matcher(subject);
 
StringBuffer b= new StringBuffer();
while (m.find()) {
     String something = m.group(0);
     System.out.println(something);
     m.appendReplacement(b, replace);
 
}
m.appendTail(b);
String replaced = b.toString();
System.out.println(replaced);
} // end main
}

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