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72 lines
3.1 KiB
Markdown
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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![details](http://mylinuxbook.com/wp-content/uploads/2014/04/details.png)
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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/ |