Problem scenario
You want to know the number of processors your Linux server has. What do you do?
Solution #1
Run this command: grep -c ^processor /proc/cpuinfo
Solution #2
Run this command: nproc
Problem scenario
You want to know how much memory your Linux server has. How do you find the amount of RAM (in gigabytes) on a Linux server?
Solution
Run this command: free -g | grep Mem | awk '{print $2}'
For megabytes, run this command: free -m | grep Mem | awk '{print $2}'