String stgUsers = "root:x:0:0:root:/root:/bin/bash";
 
StringTokenizer tokenizer = new StringTokenizer(stgUsers, ",");
int stgUsersLength= tokenizer.countTokens();
String stgUsersfield = "";
if(stgUsersLength!=0){
for (int i=0; i< stgUsersLength; i++) {
stgUsersfield = tokenizer.nextToken().trim();
System.out.print("field ["+i+"]="+ stgUsersfield);
}

# /bin/bash
 
for i in cut -f1-d: /etc/passwd
do
echo i
done