Find out CPU, Memory, and Hard-disk information in Linux

Check for CPU/processor info and count:

>	cat /proc/cpuinfo | grep processor

Notes: Counting starts at 0. If the last processor id is 3 obviously you have 4 cpu cores. You can grep for “physical id” (ex: cat /proc/cpuinfo | grep “physical id”) to find out if cpus are virtual or not. If no physical id I think those are virtual cpu cores.

Check for total memory and usage. This also includes detail of swap memory:

>

free -m

Notes: ”-m” gives you the result in MB.

Check for hard drive space and usage:

>

df -h

Notes: ”-h” means human readable for size such as MB or GB, etc.

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