A memo on commands to get the CPU core count.

$ cat /proc/cpuinfo | grep processor
processor  : 0
processor  : 1

$ echo `grep -c ^processor /proc/cpuinfo`
2

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Reference Articles

・逆引きUNIXコマンド/CPUコア数を調べる - Linuxと過ごす

That’s all from the Gemba.