linux – 一个通用的bash脚本,用于安装apt-get和yum

我正在尝试编写一个简单的bash包装器,它抽象yum和apt-get.基本上所以我们可以做一些像通用安装卷曲这是我到目前为止：

# universal-install
package=$1
apt=`command -v apt-get`
yum=`command -v yum`

if [ -n "$apt" ]; then
    apt-get update
    apt-get -y install $package
elif [ -n "$yum" ]; then
    yum -y install $package
else
    echo "Err: no path to apt-get or yum" >&2;
    exit 1;
fi

是否有任何错误或改进/优化可以做出？

解决方法:

看看how pacapt detects the OS：

# Detect package type from /etc/issue
_found_arch() {
  local _ostype="$1"
  shift
  grep -qis "$*" /etc/issue && _OSTYPE="$_ostype"
}

# Detect package type
_OSTYPE_detect() {
  _found_arch PACMAN "Arch Linux" && return
  _found_arch DPKG   "Debian GNU/Linux" && return
  _found_arch DPKG   "Ubuntu" && return
  _found_arch YUM    "CentOS" && return
  _found_arch YUM    "Red Hat" && return
  _found_arch YUM    "Fedora" && return
  _found_arch ZYPPER "SUSE" && return

  [[ -z "$_OSTYPE" ]] || return

  # See also https://github.com/icy/pacapt/pull/22
  # Please not that $OSTYPE (which is `linux-gnu` on Linux system)
  # is not our $_OSTYPE. The choice is not very good because
  # a typo can just break the logic of the program.
  if [[ "$OSTYPE" != "darwin"* ]]; then
    _error "Can't detect OS type from /etc/issue. Running fallback method."
  fi
  [[ -x "/usr/bin/pacman" ]]           && _OSTYPE="PACMAN" && return
  [[ -x "/usr/bin/apt-get" ]]          && _OSTYPE="DPKG" && return
  [[ -x "/usr/bin/yum" ]]              && _OSTYPE="YUM" && return
  [[ -x "/opt/local/bin/port" ]]       && _OSTYPE="MACPORTS" && return
  command -v brew >/dev/null           && _OSTYPE="HOMEBREW" && return
  [[ -x "/usr/bin/emerge" ]]           && _OSTYPE="PORTAGE" && return
  [[ -x "/usr/bin/zypper" ]]           && _OSTYPE="ZYPPER" && return
  if [[ -z "$_OSTYPE" ]]; then
    _error "No supported package manager installed on system"
    _error "(supported: apt, homebrew, pacman, portage, yum)"
    exit 1
  fi
}

正如您所看到的,它首先检查/ etc / issue,然后失败,脚本会查找每个包管理器的关联可执行文件.

但是,为什么不只是使用pacapt,而不是自己滚动？

标签：bash,linux,yum,apt-get
来源： https://codeday.me/bug/20190825/1717157.html