打印菜单

menu(){
cat <<END
  1.install LNMP
  2.install LAMP
  3.exit
END
}
menu
read -p  "PLS INPUT THE NUM YOU NUMBER:" num

[ "$num" -eq 1 ]&&{
  echo "install lnmp..."
  [ -f /server/scripts/lnmp.sh ] && . /server/scripts/lnmp.sh
  exit 0
}

[ $num -eq 2 ]&&{
  echo "install lamp..."
  [ -f /server/scripts/lamp.sh ] && . /server/scripts/lamp.sh
  exit 0
}

[ $num -eq 3 ]&&{
  echo "bye"
  exit 0
}
echo "error"

if

menu(){
cat <<END
  1.install LNMP
  2.install LAMP
  3.exit
END
}
menu
read -p  "PLS INPUT THE NUM YOU NUMBER:" num

if [ $num -eq 1 ];then
  echo "install lnmp..."
  [ -f /server/scripts/lnmp.sh ] && . /server/scripts/lnmp.sh
  exit
fi

if [ $num -eq 2 ] ;then
  echo "install lamp..."
  [ -f /server/scripts/lamp.sh ] && . /server/scripts/lamp.sh
  exit
fi

if [ $num -eq 3 ];then
  echo "bye"
  exit 0
fi
echo "error"