如何看CentOS系统是32位还是64位的？

最新推荐文章于 2020-07-19 13:06:00 发布

原创最新推荐文章于 2020-07-19 13:06:00 发布 · 1.8k 阅读

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本文通过具体的命令行输出对比了32位与64位系统中文件的格式差异，展示了不同位数系统下核心文件如/sbin/init和/bin/ls的ELF文件格式的不同。

32位系统：

[root@localhost ~]# file /sbin/init
/sbin/init: ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped
[root@localhost ~]# file /bin/ls
/bin/ls: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped

64位系统：

[root@localhost ]# file /sbin/init
/sbin/init: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped
[root@localhost ]# file /bin/ls
/bin/ls: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped
[root@localhost ]# uname -a
Linux localhost.localdomain 2.6.32-431.el6.x86_64 #1 SMP Fri Nov 22 03:15:09 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux