Project #1: Remote Access System (ras).
Implement a shell conosle with server-client architecture and new pipe subsystem.
Login by "csh> telnet <server_addr> <server_port>" # the server port number
Allow user to enter the following command:
% removetag test.html |3 removetag test.html | number |1 number ### |3 skips two processes.
% ls |1 ctt | cat ### cat will not execute and numbered-pipe will not be counted. Unknown command: [ctt]. % cat bin/ test.html