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crowner 验尸中
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5 Ways To Check If Linux OS is 32 bit or 64 Bit
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Sometimes Linux newbies get confused while downloading a software because the download page offers them both 32 bit and 64 bit versions of the same software. It is important to know whether your Linux OS is 32-bit or 64-bit, as this information is required while doing various tasks. In this article, we will discuss five different ways to check if your Linux OS is 32-bit or 64-Bit.
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### Check If Linux is 32-bit or 64-Bit ###
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Please note that the methods mentioned in this article are tested on Ubuntu 13.10.
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#### 1. Execute the ‘uname -a’ command ####
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One of the most common way to check if your Linux OS is 32 bit or 64 Bit is by running the [uname command][1].
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For example, on my system, it displayed the following information:
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$ uname -a
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Linux ubuntu 3.11.0-12-generic #19-Ubuntu SMP Wed Oct 9 16:12:00 UTC 2013 i686 athlon i686 GNU/Linux
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The highlighted **i686** (or i386 in some cases) signifies that the operating system is 32 bit, but if **x86_64** appears, then it means that the OS is 64 bit.
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#### 2. Execute the ‘uname -m’ command ####
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A similar but slightly different way is to run the ‘uname -m’ command.
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For example, on my system, it displayed the following information:
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$ uname -m
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i686
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Which means that my Ubuntu Linux is 32-bit. If it would have been 64 bit, the output would have been x86_64.
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#### 3. Using the file command ####
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Although it’s a kind of hack, but still it can be used to solve the purpose. In this case, you have run the file command with **/sbin/init** as an argument.
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Here is an example :
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$ file /sbin/init
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/sbin/init: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=0xc0d86a25a7abb14cad4a65a1f7d03605bcbd41f6, stripped
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The highlighted 32-bit signifies a 32-bit OS, and vice-versa.
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#### 4. Using the arch command ####
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Another alternative is to use the arch command, which prints the machine hardware name.
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Here is an example:
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$ arch
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i686
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So you can see that the output was i686, which signifies a 32-bit OS. For a 64-bit OS, the output would have been x86_64.
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#### 5. Through system settings ####
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If you are using Ubuntu 12.04 or higher, you can easily check your OS architecture by going to All **Settings -> Details**.
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So you can see that the OS type (32-bit) is clearly mentioned here.
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Do you know other ways to check if Linux OS is 32 bit or 64 Bit? Share your ideas in comments
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--------------------------------------------------------------------------------
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via: http://mylinuxbook.com/5-ways-to-check-if-linux-is-32-bit-or-64-bit/
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译者：[译者ID](https://github.com/译者ID) 校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出
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[1]:http://mylinuxbook.com/linux-uname-command/
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@ -0,0 +1,71 @@
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五种检测你的 Linux 是32位或者64位的方法
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================================================================================
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有的时候 Linux 新手们在下载的时候十分困惑，因为下载页面常常同时提供32位和64位的版本的软件。弄清楚你的操作系统是32位的或者64位的十分重要，因为你在做很多事情的时候都需要这个信息。在这篇文章里，我们会讨论五种检测你的Linux系统是32位或者64位的方法。
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### 检测你的 Linux 是32位或64位的 ###
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请注意文中的这些方法仅经过 Ubuntu 13.10 平台测试.
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#### 1. 执行‘uname -a’ 命令 ####
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最常见的一个测试你的Linux是32位或者64位的方法是运行 [uname command][1] 命令。
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例如，在我的系统里，它展示了以下信息：
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$ uname -a
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Linux ubuntu 3.11.0-12-generic #19-Ubuntu SMP Wed Oct 9 16:12:00 UTC 2013 i686 athlon i686 GNU/Linux
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那个高亮的 **i686** (or 有时候会是i386) 说明操作系统是32位的，但是如果显示的是 **x86_64**，那就说明这个操作系统是64位的。
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#### 2.运行 ‘uname -m’ 命令 ####
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一个很相似但是略有不同的方法是执行 ‘uname -m’ 命令。
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例如，在我的系统里，它显示了以下信息：
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$ uname -m
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i686
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这说明我的 Ubuntu Linux 系统是32位的，如果输出显示的是x86\_64的话，就说明你的系统是64位的。
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#### 3.使用 file 命令####
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（Although it’s a kind of hack）尽管这是一种黑客式的行为,但是仍然不失为一种达到目的的方法。使用这个方法，需要你运行file命令并带上**/sbin/init**作为参数。 but still it can be used to solve the purpose. In this case, you have run the file command with as an argument.
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请看这里有一个例子 :
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$ file /sbin/init
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/sbin/init: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=0xc0d86a25a7abb14cad4a65a1f7d03605bcbd41f6, stripped
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高亮的部分说明这是一个32位的操作系统,反之亦然。（and vice-versa.请定夺）
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#### 4. 使用 arch 命令 ####
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另外一个可以选择的方法是使用 arch 命令,这个命令用于打印机器的硬件名称。
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这里有一个示例:
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$ arch
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i686
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在这里你可以看到输出的是 i686, 这说明这是一个32位操作系统，对于64位的操作系统，输出的应该是x86_64。
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#### 5. Through system settings ####
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如果你是用的是 Ubuntu 12.04 或更高, 你可以很简单的的在** AllSettings -> Details**里查看你的系统的结构。
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这样你就可以清晰的看到系统的类型(32-bit)在这里清晰的展示了出来。
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你还知道别的方法来检测操作系统是32位还是64位的吗？请拿出你的知识在下面和大家分享吧。
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--------------------------------------------------------------------------------
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via: http://mylinuxbook.com/5-ways-to-check-if-linux-is-32-bit-or-64-bit/
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译者：[crowner](https://github.com/crowner) 校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创翻译，[Linux中国](http://linux.cn/) 荣誉推出
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[1]:http://mylinuxbook.com/linux-uname-command/
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