How can I force quit inside “openssl s_client -connect”?

问题

I am writing a script that calls the command.

openssl s_client -showcerts -connect server:9999 > out.pem -key key.pem -cert cert.pem -pass pass:password

But it displays an output, I tried adding -quiet but with no luck. Is there a way I can get it so that it won't report to the console. If I run the command in terminal I have to type exit to get out of the connection.

Edit

I want this to exit automatically with in my script. Is there a way to do that?

回答1:

The output is possibly being sent to stderr (rather than stdout). It should work if you use >& for the redirection.

回答2:

For the automatically exit part, you could do this:

echo | openssl s_client -connect www.google.com:443

来源：https://stackoverflow.com/questions/5160932/how-can-i-force-quit-inside-openssl-s-client-connect