uname for system OS judgement
- 用来检查系统信息,包括系统,版本,内核,硬件架构,节点名等. 在做系统判断时常用.
- 各选项在不同系统的结果可以参看wiki:uname
一般系统选项: (默认是-s)
-a, --all 以如下次序输出所有信息。其中若 -p 和 -i 的探测结果不可知则被省略：
-s, --kernel-name 输出内核名称(Linux)
-n, --nodename 输出网络节点上的主机名
-r, --kernel-release 输出内核版本
-v, --kernel-version 输出内核发行时间
-m, --machine 输出主机的硬件架构名称(和64位,32位有关)
-p, --processor 输出处理器类型或“unknown”
-i, --hardware-platform 输出硬件平台或“unknown”
-o, --operating-system 输出操作系统名称(GNU/Linux)
--help 显示此帮助信息并离开
--version 显示版本信息并离开
注意:在Mac中,-s输出是操作系统,和linux基本一致. 没有了-i,-o选项
Mac版本(默认是-s):
uname -- Print operating system name
SYNOPSIS
uname [-amnprsv]
DESCRIPTION
The uname utility writes symbols representing one or more system characteristics to the standard output.
The following options are available:
-a Behave as though all of the options -mnrsv were specified.
-m print the machine hardware name.
-n print the nodename (the nodename may be a name that the system is known by to a
communications network).
-p print the machine processor architecture name.
-r print the operating system release.
-s print the operating system name.
-v print the operating system version.
arch: print machine hardware name (same as uname -m)
特殊的uname指令专用于硬件架构(32位 or 64位).一般是x86_64,i386这样. Mac中有更多选项.
以下小脚本内容用于系统判断的示例
sysOS=`uname -s`
if [ $sysOS == "Darwin" ];then
echo "I'm MacOS"
elif [ $sysOS == "Linux" ];then
echo "I'm Linux"
else
echo "Other OS: $sysOS"
fi