如何响应 bash 中的提示

Question

我需要生成很多私钥和自签名证书，所以我想做一个 bash 脚本来为我做这件事。我遇到的问题是，当您对证书进行自签名时，它会询问与您生成签名请求相同的问题。

即：

You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [AU]:  
State or Province Name (full name) [Some-State]: 
Locality Name (eg, city) []: 
Organization Name (eg, company) [Internet Widgits Pty Ltd]: 
Organizational Unit Name (eg, section) []: 
Common Name (e.g. server FQDN or YOUR name) []: 
Email Address []: 
Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:
An optional company name []:

我已经尝试了我在网站上看到的几件事，但似乎都没有奏效。这可能是因为我对 bash 很陌生。

我的脚本当前如下所示：

#!/bin/bash
openssl genrsa -out privkey.pem 2048
openssl req -new -key privkey.pem -out cert.csr

我尝试使用管道来回显我想输入的内容，但它不起作用。

有什么建议吗？

Answer 1

请参阅以下位置提供的示例：

http://www.openssl.org/docs/apps/req.html#EXAMPLES

或者在命令行中执行所有操作：

openssl req -new -newkey rsa:4096 -days 365 -nodes -x509 
 -subj "/C=US/ST=Denial /L=Springfield/O=Dis/CN=www.example.com" 
 -keyout www.example.com.key  -out www.example.com.cert