如何检查软件包是否安装，如果没有安装，如何进行安装?

我正在Ubuntu系统上工作，目前我正在做的是:

if ! which command > /dev/null; then
   echo -e "Command not found! Install? (y/n) \c"
   read
   if "$REPLY" = "y"; then
      sudo apt-get install command
   fi
fi

大多数人都会这么做吗?还是有更优雅的解决方案?

当前回答

这个特性已经存在于Ubuntu和Debian的command-not-found包中。

2009-08-19 09:15:52

其他回答

受到克里斯回答的启发:

#! /bin/bash

installed() {
    return $(dpkg-query -W -f '${Status}\n' "${1}" 2>&1|awk '/ok installed/{print 0;exit}{print 1}')
}

pkgs=(libgl1-mesa-dev xorg-dev vulkan-tools libvulkan-dev vulkan-validationlayers-dev spirv-tools)
missing_pkgs=""

for pkg in ${pkgs[@]}; do
    if ! $(installed $pkg) ; then
        missing_pkgs+=" $pkg"
    fi
done

if [ ! -z "$missing_pkgs" ]; then
    cmd="sudo apt install -y $missing_pkgs"
    echo $cmd
fi

2021-02-19 04:49:37

我使用以下方法:

which mySQL 2>&1|tee 1> /dev/null
  if [[ "$?" == 0 ]]; then
                echo -e "\e[42m MySQL already installed. Moving on...\e[0m"
        else
        sudo apt-get install -y mysql-server
                if [[ "$?" == 0 ]]; then
                        echo -e "\e[42mMy SQL installed\e[0m"
                else
                        echo -e "\e[42Installation failed\e[0m"
                fi
        fi

2019-02-06 13:29:06

Use: