Is it possible to put an if statement within an If statements like so?

Question

I'm trying to put an if statement within an if statement. It seems to work until the last echo command in the script which doesn't print.

For testing I have created a directory with the same name as the $foldername which is input via a prompt. I am inputting this during the execution of the script. During the running of the script I am choosing the option to overwrite the directory, which works fine. However, I am confused as to why after the folder has been replaced, the script doesn't then move onto the last echo statement:

echo "Folder $foldername has now been created"

This is not being printed on screen which suggest the script isn't exiting the if statement section. Any ideas why?

#!/bin/bash
echo "Please input the folder name you would like to create then press ENTER"
read foldername

if [ -d "/home/location/test_directories/$foldername" ]
then
    echo "$foldername already exists"
    sleep 2
    echo
    echo
    echo "Do you want to overwrite this folder and start afresh?"
    read -p "Type Y overwrite the folder, or N to exit the script" -n 1 -r
    echo

    if [[ $REPLY =~ ^[Yy]$ ]]
    then
        echo "You have chosen to overwrite the folder $foldername"

        rm -rf /home/location/test_directories/$foldername; mkdir /home/location/test_directories/$foldername
        sleep 2
    else
        exit
    fi

    exit
else
    mkdir /home/location/test_directories/$foldername
fi

sleep 2
echo "Folder $foldername has now been created"

Answer 1

Yes, you may nest if-statements to your heart's content.

The issue with your code is, as pointed out in comments to the question, the two exit statements. Taking a branch that triggers any of these will terminate the script.

As far as I can see, both exit statements are superfluous and may be removed.

You should also make a habit of double-quoting any variable handed to you by the user, for example $foldername. In this case, to be able to handle folder names with spaces.

... or with newlines, tabs or other "field separators" if you've modified IFS, or with *, ?, [ that are special to the shell, and more if you've enabled the extglob option in bash.