检查已安装的软件包，如果未找到则安装

I need to check for installed packages and if not installed install them.

我需要检查已安装的软件包，如果没有安装，请安装它们。

Example for RHEL, CentOS, Fedora:

RHEL，CentOS，Fedora的示例：

rpm -qa | grep glibc-static
glibc-static-2.12-1.80.el6_3.5.i686

How do I do a check in BASH?

我如何检查BASH？

Do I do something like?

我会做点什么吗？

if [ "$(rpm -qa | grep glibc-static)" != "" ] ; then

And what do I need to use for other distributions? apt-get?

我还需要为其他发行版使用什么？ apt-get的？

3 个解决方案

#1

Try the following code :

请尝试以下代码：

if ! rpm -qa | grep -qw glibc-static; then
    yum install glibc-static
fi

or shorter :

或更短：

rpm -qa | grep -qw glibc-static || yum install glibc-static

For debian likes :

对于debian喜欢：

dpkg -l | grep -qw package || apt-get install package

For archlinux :

对于archlinux：

pacman -Qq | grep -qw package || pasman -S package

#2

Based on @GillesQuenot and @Kidbulra answers, here's an example how to loop over multiple packages, and install if missing:

基于@GillesQuenot和@Kidbulra答案，这里是一个如何循环多个包并在缺少时安装的示例：

packageList="git gcc python-devel"

for packageName in $packageList; do
  rpm --quiet --query $packageName || sudo yum install -y $packageName
done

#3

if [ $(yum list installed | cut -f1 -d" " | grep --extended '^full name of package being checked$' | wc -l) -eq 1 ]; then
  echo "installed";
else
  echo "missing"
fi

I use this because it returns installed / missing without relying on an error state (which can cause problems in scripts taking a "no tolerance" approach to errors via

我使用它是因为它返回已安装/缺失而不依赖于错误状态（这可能会导致脚本中的问题通过“无容忍”方法来解决错误

set -o errexit

for example)

例如）

#1