# 1. Method sellItem: sell items at 80% reduction (item worth $100 would sell for $80) # 2. Create a upper limit (4 items) for your inventory list, keep track of this limit and allow up to 4 items
# to be purchased, if the inventory is full (4 items), disable buying items by showing an error message (print it out).
# 3. Write a short paragraph explaining how your program works, be as detailed as possible by explaining every step of your program.

Give an example of a case where a two-way handshake to establish a connection could leave one side of the connection live while the other side does not believe there is a connection.

Write the command that can be used to answer the following questions. (hint: try each out on the system to check your results.) a. find all files on the system that have the word test" as part of their filename. b. search the path variable for the pathname to the awk command. c. find all files in the /usr directory and subdirectories that are larger than 50 kilobytes in size. d. find all files in the /usr directory and subdirectories that are less than 70 kilobytes in size. e. find all files in the / directory and subdirectories that are symbolic links. f. find all files in the /var directory and subdirectories that were accessed less than 60 minutes ago. g. find all files in the /var directory and subdirectories that were accessed less than six days ago. h. find all files in the /home directory and subdirectories that are empty. i. find all files in the /etc directory and subdirectories that are owned by the group bin."

Selling a product through an electronic medium is