问题描述
当然，当你输入：
sudo apt-get install whatever
它问你：
Do you want to continue [Y/n]?
有没有什么方法可以安装它而不会问我是否要继续？我真的不在乎太空，我已经足够了。
最佳解决办法
sudo apt-get install -y whatever
从手册页(man apt-get)：
-y, --yes, --assume-yes
Automatic yes to prompts; assume "yes" as answer to all prompts and
run non-interactively. If an undesirable situation, such as
changing a held package, trying to install a unauthenticated
package or removing an essential package occurs then apt-get will
abort. Configuration Item: APT::Get::Assume-Yes.
次佳解决办法
对于apt-get，-y或--assume-yes效果很好(正如@rinzwind所解释的那样)，我认为这是最好的答案。对于许多这样的交互式管理操作，存在类似的命令。
另一种非常通用的方法是这样的：
$ echo "y" | sudo apt-get install edamame_biscuit
(其中edamame-biscuit是您要安装的(made-up)程序包，并且假定”y”是合法响应;根据需要用”yes”或其他文本替换。)
这种方法的’feature’如果您错误地假设只有一个交互式提示，则会中断。如果还有一些可能不需要的提示，您可能不想说“是”，则可以避免让系统滚动而不询问的情况。
第三种解决办法
首先，让我们理解消息出现的原因。事实上，如果软件包没有你尚未安装的依赖项，或者你明确告诉它要安装，那么apt永远不会要求你：
➜ ~ sudo apt-get -qq install xfce4-screenshooter
Selecting previously unselected package xfce4-screenshooter.
(Reading database ... 296146 files and directories currently installed.)
Preparing to unpack .../xfce4-screenshooter_1.8.1-2_amd64.deb ...
Unpacking xfce4-screenshooter (1.8.1-2) ...
Processing triggers for hicolor-icon-theme (0.13-1) ...
Processing triggers for man-db (2.6.7.1-1) ...
Processing triggers for gnome-menus (3.13.3-1) ...
Processing triggers for desktop-file-utils (0.22-1) ...
Processing triggers for mime-support (3.56) ...
Setting up xfce4-screenshooter (1.8.1-2) ...
虽然如果你想安装一个依赖于你没有提到的包的包，它会问：
➜ ~ sudo apt-get -q install avis
Reading package lists...
Building dependency tree...
Reading state information...
The following extra packages will be installed:
libjzlib-java libmina-java libslf4j-java
Suggested packages:
libmina-java-doc libspring-beans-java libcommons-logging-java
liblog4j1.2-java
The following NEW packages will be installed:
avis libjzlib-java libmina-java libslf4j-java
0 upgraded, 4 newly installed, 0 to remove and 14 not upgraded.
Need to get 720 kB of archives.
After this operation, 1,258 kB of additional disk space will be used.
Do you want to continue? [Y/n]
即使这样，也不会问你是否也隐含地说你要安装这些包：
➜ ~ apt-get -q install avis libjzlib-java libmina-java libslf4j-java
Reading package lists...
Building dependency tree...
Reading state information...
Suggested packages:
libmina-java-doc libspring-beans-java libcommons-logging-java
liblog4j1.2-java
The following NEW packages will be installed:
avis libjzlib-java libmina-java libslf4j-java
0 upgraded, 4 newly installed, 0 to remove and 14 not upgraded.
Inst libjzlib-java (1.1.3-1 Debian:testing [all])
Inst libslf4j-java (1.7.7-1 Debian:testing [all])
Inst libmina-java (1.1.7.dfsg-11 Debian:testing [all])
Inst avis (1.2.2-2 Debian:testing [all])
Conf libjzlib-java (1.1.3-1 Debian:testing [all])
Conf libslf4j-java (1.7.7-1 Debian:testing [all])
Conf libmina-java (1.1.7.dfsg-11 Debian:testing [all])
Conf avis (1.2.2-2 Debian:testing [all])
但是，那么，如何确保它不会明确地问你？通过Rizwind回答应该涵盖ad-hoc和脚本解决方案(事实上，该选项更多用于脚本)您可以改为修改您的apt.conf文件并添加：
APT::Get::Assume-Yes
这样的事情应该足够了：
echo 'APT::Get::Assume-Yes;' | sudo tee -a /etc/apt/apt.conf.d/00Do-not-ask
请注意，这不允许您应该验证的其他更令人震惊的提示，例如：
➜ ~ sudo apt-get install sonar
WARNING: The following packages cannot be authenticated!
sonar
Install these packages without verification? [y/N]
这就是为什么我不建议使用yes | ...，因为这个警告会被忽略。