1 # uname -a
2
3 Linux euis1 2.6.9-55.ELsmp #1 SMP Fri Apr 20 17:03:35 EDT 2007 i686 i686 i386 GNU/Linux
4
5 (查看当前操作系统内核信息)
6
7
8
9
10 # cat /etc/issue | grep Linux
11
12 Red Hat Enterprise Linux AS release 4 (Nahant Update 5)
13
14 (查看当前操作系统发行版信息)
15
16
17
18
19 # cat /proc/cpuinfo | grep name | cut -f2 -d: | uniq -c
20
21 8 Intel(R) Xeon(R) CPU E5410 @ 2.33GHz
22
23 (看到有8个逻辑CPU, 也知道了CPU型号)
24
25
26 # cat /proc/cpuinfo | grep physical | uniq -c
27
28 4 physical id : 0
29
30 4 physical id : 1
31
32 (说明实际上是两颗4核的CPU)
33
34
35 # getconf LONG_BIT
36
37 32
38
39 (说明当前CPU运行在32bit模式下, 但不代表CPU不支持64bit)
40
41
42 # cat /proc/cpuinfo | grep flags | grep ' lm ' | wc -l
43
44 8
45
46 (结果大于0, 说明支持64bit计算. lm指long mode, 支持lm则是64bit)
47
48 ========================================
49
50
51
52 查看linux系统版本,位数的相关命令
53
54
55
56 1.查看内核版本
57
58 [oracle@svr15 ~]$ cat /etc/issue
59 Red Hat Enterprise Linux AS release 4 (Nahant)
60 Kernel /r on an /m
61
62 [oracle@svr15 ~]$ cat /proc/version
63 Linux version 2.6.9-5.ELsmp (bhcompile@decompose.build.redhat.com) (gcc version 3.4.3 20041212 (Red Hat 3.4.3-9.EL4)) #1 SMP Wed Jan 5 19:30:39 EST 2005
64
65 [oracle@svr15 ~]$ uname -r
66 2.6.9-5.ELsmp
67
68
69
70 2.查看操作系统位数
71 [oracle@svr15 ~]$ ls / #如果有lib64或这个目录,那操作系统就是64位的
72 bin boot dev etc home initrd lib lost+found media misc mnt opt proc root sbin selinux srv sys tmp usr var
73
74 [oracle@svr15 ~]$ getconf LONG_BIT
75 32
