查看有多少个CPU 1：top 命令之后，按数字1 键，会显示CPU信息
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top - 09:19:05 up 28 days, 1:18, 6 users, load average: 0.24, 0.19, 0.15 Tasks: 273 total, 1 running, 272 sleeping, 0 stopped, 0 zombie %Cpu0 : 0.7 us, 0.3 sy, 0.0 ni, 99.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu1 : 0.7 us, 0.0 sy, 0.0 ni, 99.3 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu2 : 1.0 us, 0.7 sy, 0.0 ni, 98.3 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu3 : 23.3 us, 0.3 sy, 0.0 ni, 76.4 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu4 : 0.0 us, 0.3 sy, 0.0 ni, 99.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st %Cpu5 : 0.3 us, 0.0 sy, 0.0 ni, 99.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st |
2：
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grep -c ^processor /proc/cpuinfo |
3：lscpu 查看系统主机名称:
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hostname |
……