【Linux】apt-get install 怎么阻止弹出框，使用脚本默认自动安装？

You can do a couple of things for avoiding this. Setting the DEBIAN_FRONTEND variable to noninteractive and using -y flag. For example:

export DEBIAN_FRONTEND=noninteractive
apt-get -y install [packagename]

If you need to install it via sudo, use:

sudo DEBIAN_FRONTEND=noninteractive apt-get -y install [packagename]

参考资料：

How do I ask apt-get to skip any interactive post-install configuration steps?：http://serverfault.com/questions/227190/how-do-i-ask-apt-get-to-skip-any-interactive-post-install-configuration-steps

http://superuser.com/questions/928463/hit-enter-automatically-when-running-apt-get-install-package-prompts-a-dialog

http://askubuntu.com/questions/448358/automating-apt-get-install-with-assume-yes