Assignment 1 :

Several operating system applications :

arch : Indicates whether the system is 32-bit or 64-bit

uptime : Indicates the current running time of the system and the average system load and the number of users logged into the system

free : Indicates the amount of memory consumed by the system

Pwd : Prints the name of the current work path in its entirety, abbreviated as Print Working Directory

exit : The command is to exit and close the terminal

Solotion 2:

Calculate the circumference and area of a circle .

Solution 3 :

Geometry donor theorem .

Solution 4 :

Calculate BMI a Person .