Linux查看内核、CPU等信息的常用命令

查看系统内核版本命令：

uname -a

more /etc/*release

more /etc/redhat-release

more /proc/version

[root@localhost ~]# uname -a

Linux localhost.localdomain 2.6.9-22.ELsmp #1 SMP Mon Sep 19 18:00:54 EDT 2005 x86_64 x86_64 x86_64 GNU/Linux

[root@localhost ~]# more /etc/*release

Red Hat Enterprise Linux AS release 4 (Nahant Update 2)

[root@localhost ~]# more /etc/redhat-release

Red Hat Enterprise Linux AS release 4 (Nahant Update 2)

[root@localhost ~]# more /etc/issue

Red Hat Enterprise Linux AS release 4 (Nahant Update 2)

Kernel \r on an \m

[root@localhost ~]# more /proc/version

Linux version 2.6.9-22.ELsmp (bhcompile@crowe.devel.redhat.com) (gcc version 3.4.4 20050721 (Red Hat 3.4.4-2)) #1 SMP Mon Se

p 19 18:00:54 EDT 2005

查看cpu信息

grep "model name" /proc/cpuinfo

[root@localhost ~]# grep "model name" /proc/cpuinfo

model name : Dual-Core AMD Opteron(tm) Processor 2216

[root@localhost ~]# more /proc/cpuinfo

processor : 0

vendor_id : AuthenticAMD

cpu family : 15

model : 65

model name : Dual-Core AMD Opteron(tm) Processor 2216

stepping : 2

cpu MHz : 2412.409

cache size : 1024 KB

physical id : 0

siblings : 2

core id : 0

cpu cores : 2

fpu : yes

fpu_exception : yes

cpuid level : 1

wp : yes

flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht sysca

ll nx mmxext lm 3dnowext 3dnow pni cx16 ts fid vid ttp 芬+3

bogomips : 4849.66

TLB size : 1088 4K pages

clflush size : 64

cache_alignment : 64

address sizes : 40 bits physical, 48 bits virtual

power management: ts fid vid ttp [4] [5]

processor : 1

vendor_id : AuthenticAMD

cpu family : 15

model : 65

model name : Dual-Core AMD Opteron(tm) Processor 2216

stepping : 2

cpu MHz : 2412.409

cache size : 1024 KB

physical id : 0

siblings : 2

core id : 1

cpu cores : 2

fpu : yes

fpu_exception : yes

cpuid level : 1

wp : yes

flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht sysca

ll nx mmxext lm 3dnowext 3dnow pni cx16 ts fid vid ttp 芬+3

bogomips : 4816.89

TLB size : 1088 4K pages

clflush size : 64

cache_alignment : 64

address sizes : 40 bits physical, 48 bits virtual

power management: ts fid vid ttp [4] [5]

processor : 2

vendor_id : AuthenticAMD

cpu family : 15

model : 65

model name : Dual-Core AMD Opteron(tm) Processor 2216

stepping : 2

cpu MHz : 2412.409

cache size : 1024 KB

physical id : 1

siblings : 2

core id : 2

cpu cores : 2

fpu : yes

fpu_exception : yes

cpuid level : 1

wp : yes

flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht sysca

ll nx mmxext lm 3dnowext 3dnow pni cx16 ts fid vid ttp 芬+3

bogomips : 4816.89

TLB size : 1088 4K pages

clflush size : 64

cache_alignment : 64

address sizes : 40 bits physical, 48 bits virtual

power management: ts fid vid ttp [4] [5]

processor : 3

vendor_id : AuthenticAMD

cpu family : 15

model : 65

model name : Dual-Core AMD Opteron(tm) Processor 2216

stepping : 2

cpu MHz : 2412.409

cache size : 1024 KB

physical id : 1

siblings : 2

core id : 3

cpu cores : 2

fpu : yes

fpu_exception : yes

cpuid level : 1

wp : yes

flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca mov pat pse36 clflush mmx fxsr sse sse2 ht sysca

ll nx mmxext lm 3dnowext 3dnow pni cx16 ts fid vid ttp 芬+3

bogomips : 4816.89

TLB size : 1088 4K pages

clflush size : 64

cache_alignment : 64

address sizes : 40 bits physical, 48 bits virtual

power management: ts fid vid ttp [4] [5]

查看cpu的位数

getconf LONG_BIT

[root@localhost ~]# getconf LONG_BIT

64

[root@localhost ~]# ls /

bin dev home lib lost+found misc opt root selinux sys tftpboot update usr

boot etc initrd lib64 media mnt proc sbin srv test tmp updates var

要是在root下ls 有lib64文件夹说明系统64

查看libc、gcc版本

ldd /sbin/mii-tool

rpm -qa | grep glibc

gcc –version

[root@localhost ~]# ldd /sbin/mii-tool

libc.so.6 => /lib64/tls/libc.so.6 (0x0000002a9566c000)

/lib64/ld-linux-x86-64.so.2 (0x0000002a95556000)

[root@localhost ~]# rpm -qa | grep glibc

glibc-2.3.4-2.13

compat-glibc-2.3.2-95.30

glibc-utils-2.3.4-2.13

glibc-common-2.3.4-2.13

glibc-headers-2.3.4-2.13

glibc-devel-2.3.4-2.13

compat-glibc-2.3.2-95.30

glibc-profile-2.3.4-2.13

glibc-2.3.4-2.13

glibc-kernheaders-2.4-9.1.98.EL

compat-glibc-headers-2.3.2-95.30

glibc-devel-2.3.4-2.13

[root@localhost ~]# gcc --version

gcc (GCC) 3.4.4 20050721 (Red Hat 3.4.4-2)

Copyright (C) 2004 Free Software Foundation, Inc.

This is free software; see the source for copying conditions. There is NO

warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

查看内存信息

more /proc/meminfo

grep MemTotal /proc/meminfo

[root@localhost ~]# more /proc/meminfo

MemTotal: 4045176 kB

MemFree: 2424704 kB

Buffers: 96884 kB

Cached: 1027088 kB

SwapCached: 0 kB

Active: 807884 kB

Inactive: 618432 kB

HighTotal: 0 kB

HighFree: 0 kB

LowTotal: 4045176 kB

LowFree: 2424704 kB

SwapTotal: 2031608 kB

SwapFree: 2031608 kB

Dirty: 24 kB

Writeback: 0 kB

Mapped: 346192 kB

Slab: 170056 kB

Committed_AS: 487688 kB

PageTables: 8492 kB

VmallocTotal: 536870911 kB

VmallocUsed: 1748 kB

VmallocChunk: 536868683 kB

HugePages_Total: 0

HugePages_Free: 0

Hugepagesize: 2048 kB

[root@localhost ~]# grep MemTotal /proc/meminfo

MemTotal: 4045176 kB