Open 3 terminal
Run 2 client and 1 server
Enter y if you run all on your computer (not virtual computer)

check_user <option> <username>
options: -find, -online, show_date, -show_fullname, -show_note, -show_all.
-find: find user
-online: check online user
-show_date: show DOB of a user
-show_fullname: show full name of a user
-show_note: show note of a user
-show_all: show all information

setup_info <option> <content>
options: -fullname, -date, -note.
-fullname: change full name.
-date: change DOB.
-note: change note.

change_password

<action> <option> <file path>
actions: upload, download.
options: -single_file, -multi_files, -change_name (upload and change name).

create room <id_room> with <user_list>