当然，当您键入：

sudo apt-get install whatever

它要求您：

Do you want to continue [Y/n]? 

有什么方法可以直接安装它而无需询问我是否要继续吗？我不太在乎空间，我有足够的空间了。

sudo apt-get install -y whatever

在手册页（man apt-get）中：

 -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.

对于apt-get -y或--assume-yes正常工作（如@rinzwind所述），我认为这是最好的答案。对于许多此类交互式管理操作，有一个类似的命令。

另一种通用的方法是：

 $ echo "y" | sudo apt-get install edamame_biscuit

（如果edamame-biscuit是您要安装的（虚构）软件包，则假定“ y”是合法的响应；根据需要用“ yes”或其他文本替换。）

该方法的一个特点是，如果您错误地仅假设一个交互式提示，则此方法将中断。如果还有其他可能不需要的提示，您可能不想对它们说“是”，则可以避免让系统随便询问的情况。

首先，让我们了解为什么出现此消息。实际上，如果该软件包没有尚未安装的依赖项，或者没有明确告诉您要安装的依赖项，则apt永远不会询问您：

➜  ~  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) ...

如果要安装依赖于软件包的软件包，则没有提到，它会询问：

➜  ~  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，也不会问您是否还隐式地说要安装那些软件包：

➜  ~  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，如何使其不明确地要求您呢？通过Rizwind，答案应涵盖即席和脚本解决方案（实际上，该选项在脚本中使用更多），您可以改为修改apt.conf文件并添加：

APT::Get::Assume-Yes

像这样的东西就足够了：

echo 'APT::Get::Assume-Yes;' | sudo tee -a /etc/apt/apt.conf.d/00Do-not-ask

请注意，这将不允许您验证其他更严重的提示，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的原因yes | ...，因为此警告将被忽略。

添加-y到任何库安装

例如：sudo apt-get install -y nodejs

例如：sudo apt-get install -y postgres

例如：sudo apt-get install -y mongodb

有--force-yes as well，并且注意偶然的空间。 因最近的发行而贬值