RHELやCentOS系のOS情報取得

get_os_info.sh

get_os_info() {
  local desc=$(cat /etc/*-release | uniq)
  local ver=$(echo $desc | sed 's/.* release \(\S*\) .*/\1/')
  local arch=$(uname -m)
  case $desc in
    Red*)
      local os=RHEL
    ;;
    CentOS*)
      local os=CentOS
    ;;
    *)
      local os=Unknown
    ;;
  esac
  export os_name=$os
  export os_ver=$ver
  export os_arch=$arch
}