First, you have to create a folder name 'clients' in the current directory and to compile the program with Cmake. To use CMakeLists.txt, create a folder name build in the current directory and write the following line in your shell :
$ cd build
$ cmake ..
$ makeThen, to execute the program, write './main.exe 8080' for example (but it can be an different number than 8080) and write 'nc localhost 8080' via a new shell to log in the server.
Note : You can repeat 'nc localhost 8080' in a new shell to have more than one client connected.
'HELP' : print all the available commands
'PING' : print PONG
'SET [x]' : save [x] in a table
'GET [x]' : search [x] in the table and print it if found
'DEL [x]' : delete [x] from the table
'ACL_USERS' : print the list of all the clients connected to the server
'COPY [x] [y]' : [y] = [x]
'ECHO [x]' : print x, but do not save it in a table
'INCR [x]' : increment [x] (note: x has to be set before)
'SAVE' : saves the variables previously set in a file