创建空文件，提示文件是否已存在？

Question

我如何触摸或创建新文件，脚本问我一个问题，如果我想覆盖该文件已存在？脚本应该是什么样的？

Answer 1

可能是这样的：

#!/bin/bash

if [ -e "$1" ]; then
    echo "Want to overwrite? (Y/n)"
    read ANSWER
    [ "$ANSWER" = "Y" ] && touch "$1" || echo "Ok"
else
    echo "Creating"
    touch "$1"
fi

将其称为：./script <filename>