Pipes And Signals

Signals are a kind of interrupt to the running process. This tutorial contains some hand-on codes for you to try.

Pipe is a communication mechianism for sending information between processes. In this tutorial, you will learn more about pipe in Linux.

You need to do:

• Follow the left content step by step to learn how to use pipe.
• Answer the six questions (Q1-Q6) in Section 1 "Knowing about pipe", the answers can all be found in Section 2 and 3 (A1-A6)
• There are four programs in this tutorial, compile them, run them, understand them. Finish exercise 1 and 2.

After that, you should know:

• What pipe really is.
• How pipe works.
• How to use pipe.

At the last section, some useful functions for the shell are included for your reference.

Prepared by TANG Lu and Calvin Kam

• Sample code for this lab can be found here.

• Sample code for process can be found here.