Most of the hardware information can be extracted from /proc file system, for example display CPU and Memory information, enter:
cat /proc/meminfo
cat /proc/cpuinfo
[root@HCMRTG_BY_YaoBin ~]# cat /proc/meminfo
MemTotal: 3500784 kB
MemFree: 127428 kB
Buffers: 68472 kB
Cached: 3065788 kB
SwapCached: 0 kB
Active: 762384 kB
Inactive: 2547700 kB
HighTotal: 2621232 kB
HighFree: 5368 kB
LowTotal: 879552 kB
LowFree: 122060 kB
SwapTotal: 779112 kB
SwapFree: 779032 kB
Dirty: 30616 kB
Writeback: 372 kB
AnonPages: 175812 kB
Mapped: 17244 kB
Slab: 52968 kB
PageTables: 2212 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
CommitLimit: 2529504 kB
Committed_AS: 419104 kB
VmallocTotal: 114680 kB
VmallocUsed: 2552 kB
VmallocChunk: 111944 kB
HugePages_Total: 0
HugePages_Free: 0
HugePages_Rsvd: 0
Hugepagesize: 4096 kB
[root@HCMRTG_BY_YaoBin ~]# cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.00GHz
stepping : 10
cpu MHz : 3000.370
cache size : 2048 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
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 lm constant_tsc pni monitor ds_cpl cid cx16 xtpr lahf_lm
bogomips : 6003.78
processor : 1
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.00GHz
stepping : 10
cpu MHz : 3000.370
cache size : 2048 KB
physical id : 0
siblings : 2
core id : 0
cpu cores : 1
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
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 lm constant_tsc pni monitor ds_cpl cid cx16 xtpr lahf_lm
bogomips : 5999.40
processor : 2
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.00GHz
stepping : 10
cpu MHz : 3000.370
cache size : 2048 KB
physical id : 3
siblings : 2
core id : 0
cpu cores : 1
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
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 lm constant_tsc pni monitor ds_cpl cid cx16 xtpr lahf_lm
bogomips : 5999.43
processor : 3
vendor_id : GenuineIntel
cpu family : 15
model : 4
model name : Intel(R) Xeon(TM) CPU 3.00GHz
stepping : 10
cpu MHz : 3000.370
cache size : 2048 KB
physical id : 3
siblings : 2
core id : 0
cpu cores : 1
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 5
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 lm constant_tsc pni monitor ds_cpl cid cx16 xtpr lahf_lm
bogomips : 5999.47
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