This script is responsible for:

• Create a new limit file named {month} inside /files/limits/{year}/, where each line represents one user followed by his limit (separated with space).
• Check users in debit
• Execute every month

This script is responsible for:

• Update a user limit after printing

This script is a wrapper around the others, with the given responsibilities:

• Not allow printing for an user that passed the global quota

• Print a file requested by user and delegate the update of limit to save_print.sh

• Not allow printing for unregistered users (not contains in authorized_users file)

• Delegates the report generation to report.sh

• Obs: The possible printing files contains only text. One page is equivalent to the max() of 60 lines or 3600 (60x60) chars.

This script is responsible for generating a report about the amount consumed by each user per month containing:

• Number of flies printed
• Number of pages printed