查看linux系统版本,内核,CPU,MEM,位数的相关命令(转)

转自http://www.donglirong.com/?action=show&id=79
1.查看版本，内核

[oracle@svr15 ~]$ cat /etc/issue

Red Hat Enterprise Linux AS release 4 (Nahant)

Kernel \r on an \m

[oracle@svr15 ~]$ cat /proc/version

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

[oracle@svr15 ~]$ uname -r

2.6.9-5.ELsmp

2.查看cpu,mem

[oracle@svr15 ~]$ grep "model name" /proc/cpuinfo

model name : Intel(R) Xeon(R) CPU 5130 @ 2.00GHz

model name : Intel(R) Xeon(R) CPU 5130 @ 2.00GHz

model name : Intel(R) Xeon(R) CPU 5130 @ 2.00GHz

model name : Intel(R) Xeon(R) CPU 5130 @ 2.00GHz

[oracle@svr15 ~]$ cat /proc/cpuinfo

processor : 0

vendor_id : GenuineIntel

cpu family : 6

model : 15

model name : Intel(R) Xeon(R) CPU 5130 @ 2.00GHz

stepping : 6

cpu MHz : 1995.006

cache size : 64 KB

physical id : 0

siblings : 2

fdiv_bug : no

hlt_bug : no

f00f_bug : no

coma_bug : no

fpu : yes

fpu_exception : yes

cpuid level : 10

wp : yes

flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx
lm pni monitor ds_cpl tm2 xtpr

bogomips : 3956.73

processor : 1

vendor_id : GenuineIntel

cpu family : 6

model : 15

model name : Intel(R) Xeon(R) CPU 5130 @ 2.00GHz

stepping : 6

cpu MHz : 1995.006

cache size : 64 KB

physical id : 0

siblings : 2

fdiv_bug : no

hlt_bug : no

f00f_bug : no

coma_bug : no

fpu : yes

fpu_exception : yes

cpuid level : 10

wp : yes

flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx
lm pni monitor ds_cpl tm2 xtpr

bogomips : 3981.31

processor : 2

vendor_id : GenuineIntel

cpu family : 6

model : 15

model name : Intel(R) Xeon(R) CPU 5130 @ 2.00GHz

stepping : 6

cpu MHz : 1995.006

cache size : 64 KB

physical id : 3

siblings : 2

fdiv_bug : no

hlt_bug : no

f00f_bug : no

coma_bug : no

fpu : yes

fpu_exception : yes

cpuid level : 10

wp : yes

flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx
lm pni monitor ds_cpl tm2 xtpr

bogomips : 3981.31

processor : 3

vendor_id : GenuineIntel

cpu family : 6

model : 15

model name : Intel(R) Xeon(R) CPU 5130 @ 2.00GHz

stepping : 6

cpu MHz : 1995.006

cache size : 64 KB

physical id : 3

siblings : 2

fdiv_bug : no

hlt_bug : no

f00f_bug : no

coma_bug : no

fpu : yes

fpu_exception : yes

cpuid level : 10

wp : yes

flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx
lm pni monitor ds_cpl tm2 xtpr

bogomips : 3981.31

[oracle@svr15 ~]$ grep MemTotal /proc/meminfo

MemTotal: 4147280 kB

[oracle@svr15 ~]$ free

total used free shared buffers cached

Mem: 4147280 4138220 9060 0 106124 3865896

-/+ buffers/cache: 166200 3981080

Swap: 4192924 0 4192924

3.查看操作系统位数

[oracle@svr15 ~]$ ls / #如果有lib64或这个目录,那操作系统就是64位的

bin boot dev etc home initrd lib lost+found media misc mnt opt proc root sbin selinux srv sys tmp usr var

[oracle@svr15 ~]$ getconf LONG_BIT

32

[oracle@svr15 ~]$ ldd /sbin/mii-tool

libc.so.6 => /lib/i686/libc.so.6 (0x00b2f000)

/lib/ld-linux.so.2 (0x00a49000)