有沒有在這個Bash腳本菜單中顯示提示的方法？

Question

有沒有辦法讓下面的bash腳本在之前顯示它的選擇菜單而不是之後的兩個提示 ？

謝謝。

#!/usr/bin/env bash 

PS3='Copy database to which server? ' 
options=("debug" "dev" "prod" "Quit") 
select server in "${options[@]}" 
do 
    case $server in 
     "debug") 
      break 
      ;; 
     "dev") 
      break 
      ;; 
     "prod") 
      break 
      ;; 
     "Quit") 
      echo "Quitting" 
      exit 1 
      ;; 
     *) echo "Invalid option";; 
    esac 
done 

PS3='Reuse existing user data or get fresh data? ' 
options=("existing" "fresh" "Quit") 
select data in "${options[@]}" 
do 
    case $data in 
     "existing") 
      break 
      ;; 
     "fresh") 
      break 
      ;; 
     "Quit") 
      echo "Quitting" 
      exit 1 
      ;; 
     *) echo "Invalid option";; 
    esac 
done 

echo "You chose "$server" and "$data 
exit 1 

Answer 1

是...你可以在任何時候echo寫文字給用戶：

echo 'Copy database to which server?' 
options=("debug" "dev" "prod" "Quit") 
select server in "${options[@]}" 
do 
    case $server in 
     "debug") 
      break 
      ;; 
     "dev") 
      break 
      ;; 
     "prod") 
      break 
      ;; 
     "Quit") 
      echo "Quitting" 
      exit 1 
      ;; 
     *) echo "Invalid option";; 
    esac 
done 

這將使你：

Copy database to which server? 
1) debug 
2) dev 
3) prod 
4) Quit 
#?