出來while循環的shell腳本

Question

我有以下代碼

echo "Please Enter the Email Id" 
while read -r email 
do 
if 
    echo "$email" | grep -v "awt" 
    then 
    echo "You entered a invalid email id please try again" 
    break 
    fi 
    echo "================You chose Email id as $email" 
done 

echo "Please Enter the user Name" 
read -r name 
    echo "you entered $name" 
echo Final email id $email 
echo final name  $name 

當IAM試圖執行上面的代碼，蔭未能就進入第二個條件，那就是它不出來的循環。 我需要的是它應該問，直到用戶輸入正確的電子郵件ID之後，它應該去的下一組代碼的最後打印的最後echo語句

Answer 1

你可以這樣說：

while :; do 
    read -rp 'Please Enter the Email Id: ' email 
    if [[ $email != *awt* ]]; then 
     echo "You entered an invalid email id please try again" 
    else 
     break 
    fi 
done