how to make a verification while loop in shell script

Question

I'd want to ask you a question concerning a while loop. I've looked eve

#!/bin/bash
# Username and password loop;do
 
       
        fi
done

You seem to be missing the beginning of your loop. Also, it's not clear where you're setting values for $Admin and $Secret. — larsks
– larsks, Commented Jun 6, 2022 at 23:28
@Steven : There is no loop in your code. Please post the complete code. I also suggest to paste your program into [shellcheck](shellcheck.net), before asking here such a question. — user1934428
– user1934428, Commented Jun 7, 2022 at 7:16

glenn jackman · Accepted Answer · 2022-06-06 23:45:44Z

1

I'm not sure I entirely understand your question, but it seems that you're missing while true; do and the break command:

#!/bin/bash

Admin="the_admin_user"
Secret="the_secret_password"

while true; do
    read -p "Please Enter Username  : " Username
    if [[ "$Username" = "$Admin" ]]
    then
        echo "Username is Correct"
        break
    else
        echo "Username is Wrong"
    fi
done

while true; do
    read -p "Please Enter Password  : " Password1
    read -p "Enter Password Again   : " Password2

    if [[ "$Password1" != "$Password2" ]]
    then
        echo "Passwords don't match! Try again."
    elif [[ "$Password1" = "$Secret" ]]
    then
        echo "Password is Correct"
        break
    else
        echo "Password is Wrong"
    fi
done

echo "Success!"

answered Jun 6, 2022 at 23:45

glenn jackman

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