create basic script in linux to open new terminals and execute command

write this in "hello.sh" file

#!/bin/bash

# some older test, doesn't work and complains and I get this message on command line: "QApplication::qAppName: Please instantiate the QApplication object first"
# I also can't enter text after command executes
#echo "Hello World!"
#exec konsole --noclose -e cat ~/.aliases

for i in 1 2 3 4
do
# opens terminal but then I can't control terminal afterwards
xterm -hold -e "echo Hello My World" &
done

# didn't do anything
#exit 0

# didn't do anything except make me type exit an extra time where I executed my shell script
#$SHELL

chmod +x hello.sh
./hello.sh