create a child process by fork() a parent process in shell script

Question

It seems some answers on the site but those seem not to resolve my question.

Say,

#/bin/sh
fpfunction(){
n=1
while (($n<20))
do

        echo "Hello World-- $n times"
        sleep 2
        echo "Hello World2-- $n times"
        n=$(( n+1 ))
done
}

fork(){
    count=0
    while (($count<=10))
    do
      fpfunction &
      count=$(( count+1 ))
    done
}

fork

---

I am expecting to "fork" this parent process to the number of 10 child processes.

The way I check that those child processes are actually created is to type "ps -l" command.

I am a newbie to the shell world and please let me know how to archive this.

Thanks in advance.

Answer 1

The ampersand (&) after a command will run it in a forked subshell.

fpfunction &