How to check how many cores a CPU has in Linux

1. Check the number of physical CPUs

#cat /proc/cpuinfo |grep "physical id"|sort |uniq|wc -l

2. Check the number of logical CPUs (online learning video tutorial sharing: linux video tutorial）

#cat /proc/cpuinfo |grep "processor"|wc -l

3. Check the number of cores of the CPU

#cat /proc/cpuinfo |grep "cores"|uniq

4. Check the main frequency of the CPU

#cat /proc/cpuinfo |grep MHz|uniq

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