Instructions Write a mini shell program (in C/C++ ) called cwushell under Linux/MacOS. The shell recognizes the following internal commands: 3. cpuinfo -switch will print on the screen different cpu related information based on the switch. The different switches to be implemented are: 1) -c-will print the cpu clock (e.g. 3.2GHz ), 2) -t -will print the cpu type (e.g. Intel) and 3) -n-will print the number of cores (e.g. 8)