리눅스 CPU 갯수 확인하는 법

1)

cat /proc/cpuinfo | awk '/^processor/{print $3}' | wc -l

2)

grep -c ^processor /proc/cpuinfo

3)

grep ^cpu\\scores /proc/cpuinfo | uniq |  awk '{print $4}'

4)

nproc --all

5)

getconf _NPROCESSORS_ONLN

6)

lscpu

7)

echo $(($(grep "^physical id" /proc/cpuinfo | awk '{print $4}' | sort -un | tail -1)+1))