阅读在bash的变量有一个默认值 [英] Read a variable in bash with a default value

问题描述

我需要在bash脚本来读取来自终端的值。我想是能够提供一个默认值，用户可以更改

I need to read a value from the terminal in a bash script. I would like to be able to provide a default value that the user can change.

# Please enter your name: Ricardo^

在这个脚本的提示是请输入你的名字：默认值是里卡多，光标将默认值之后。有没有办法在bash脚本做到这一点？

In this script the prompt is "Please enter your name: " the default value is "Ricardo" and the cursor would be after the default value. Is there a way to do this in a bash script?

推荐答案

您可以使用参数扩展如

read -p "Enter: " name
name=${name:-Richard}
echo $name

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