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1¡¢¡¡¡¡# dmesg | grep CPU
¡¡¡¡Initializing CPU#0
¡¡¡¡CPU: Trace cache: 12K uops
¡¡¡¡CPU: L1 I-cache: 0K, L1 D-cache: 16K
¡¡¡¡CPU: L2 cache: 256K
¡¡¡¡Intel machine check reporting enabled on CPU#0.
¡¡¡¡CPU: After generic, caps: bfebfbff 00000000 00000000 00000000
¡¡¡¡CPU: Common caps: bfebfbff 00000000 00000000 00000000
¡¡¡¡CPU: Intel(R) Celeron(R) CPU 2.53GHz stepping 01
¡¡¡¡microcode: CPU0 updated from revision 0x0 to 0x12, date = 11222004
2¡¢¡¡¡¡# cat /proc/cpuinfo | grep name
¡¡¡¡model name : Intel(R) Celeron(R) CPU 2.53GHz
3¡¢¡¡¡¡# rpm -q --queryformat "%{ARCH}\n" kernel
¡¡¡¡i686
Äڴ棺# cat /proc/meminfo
Ó²ÅÌ£º# dfÃüÁî²é¿´´óС
#hdparm -i /dev/hda²é¿´ÐͺÅ
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Logical Link Control and Adaptation Protocol(L2CAP)
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3.Êýѧ¼ÆËãÖ®bc
  echo "3 + 4 - 5 * 5 - 7 " | bc
 echo "3 + 4 - 5 * 5 - 7 " | bc | read myresult
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