Hands-On System Programming with Go

Pipes

Pipes are the last unidirectional communication method between processes. As the name suggests, pipes connect two ends – a process input with another process output – making it possible to process on the same host to communicate in order to exchange data.

These are classified as anonymous or named:

• Anonymous pipes link one process standard output to another process standard input. It can be easily done inside a shell with the | operator, linking the output of the command before the pipe as input for the one after the pipe. ls -l | grep "user" gets the output of the ls command and uses it as input for grep. 
• Named pipes use a specific file in order to execute the redirect. The output can be redirected to a file with the > (greater) ...