1.查看版本，内核
evan@evan-desktop:~$ cat /etc/issue
Ubuntu 10.04 LTS \n \l
evan@evan-desktop:~$ cat /proc/version
Linux version 2.6.32-21-generic (buildd@rothera) (gcc version 4.4.3 (Ubuntu 4.4.3-4ubuntu5) ) #32-Ubuntu SMP Fri Apr 16 08:10:02 UTC 2010
evan@evan-desktop:~$ uname -r
2.6.32-21-generic
2.查看cpu,mem
evan@evan-desktop:~$ grep "model name" /proc/cpuinfo
model name : Pentium(R) Dual-Core CPU E5200 @ 2.50GHz
model name : Pentium(R) Dual-Core CPU E5200 @ 2.50GHz
evan@evan-desktop:~$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Pentium(R) Dual-Core CPU E5200 @ 2.50GHz
stepping : 6
cpu MHz : 1203.000
cache size : 2048 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 2
apicid : 0
initial apicid : 0
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 mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm lahf_lm
bogomips : 5000.49
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
processor : 1
vendor_id : GenuineIntel
cpu family : 6
model : 23
model name : Pentium(R) Dual-Core CPU E5200 @ 2.50GHz
stepping : 6
cpu MHz : 1203.000
cache size : 2048 KB
physical id : 0
siblings : 2
core id : 1
cpu cores : 2
apicid : 1
initial apicid : 1
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 mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc arch_perfmon pebs bts aperfmperf pni dtes64 monitor ds_cpl est tm2 ssse3 cx16 xtpr pdcm lahf_lm
bogomips : 5000.44
clflush size : 64
cache_alignment : 64
address sizes : 36 bits physical, 48 bits virtual
power management:
evan@evan-desktop:~$ grep MemTotal /proc/meminfo
MemTotal: 1017052 kB
evan@evan-desktop:~$ free
total used free shared buffers cached
Mem: 1017052 975076 41976 0 2964 295680
-/+ buffers/cache: 676432 340620
Swap: 0 0 0
3.查看操作系统位数
evan@evan-desktop:~$ getconf LONG_BIT
32
evan@evan-desktop:~$ ldd /sbin/mii-tool
linux-gate.so.1 => (0x00736000)
libc.so.6 => /lib/tls/i686/cmov/libc.so.6 (0x00110000)
/lib/ld-linux.so.2 (0x00bec000)