linux 下查看cpu位數 內核等參數命令（轉）

 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 (查看當前操做系統內核信息)
 6 
 7  
 8 
 9 
10 # cat /etc/issue | grep Linux
11 
12 Red Hat Enterprise Linux AS release 4 (Nahant Update 5)
13 
14 (查看當前操做系統發行版信息)
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個邏輯CPU, 也知道了CPU型號) 
24 
25 
26 # cat /proc/cpuinfo | grep physical | uniq -c
27 
28       4 physical id      : 0
29 
30       4 physical id      : 1
31 
32 (說明其實是兩顆4核的CPU) 
33 
34 
35 # getconf LONG_BIT
36 
37 32
38 
39 (說明當前CPU運行在32bit模式下, 但不表明CPU不支持64bit)
40 
41  
42 # cat /proc/cpuinfo | grep flags | grep ' lm ' | wc -l
43 
44 8
45 
46 (結果大於0, 說明支持64bit計算. lm指long mode, 支持lm則是64bit)
47 
48  ========================================
49 
50  
51 
52 查看linux系統版本,位數的相關命令
53 
54  
55 
56 1.查看內核版本
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.查看操做系統位數
71 [oracle@svr15 ~]$ ls /   #若是有lib64或這個目錄,那操做系統就是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