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Redirecting Streams of Text

When you used the echo command to create a file, you took the output of one command and directed it somewhere else. Let’s look at this in more detail.

Execute this command to view all of the running processes on your computer:

$ ps -ef

The ps command shows you the processes running on your computer, and the -ef options show you the processes for every user in all sessions. Once again, the output of the command streams by.

This problem can be solved in a couple of ways. The first approach would be to capture the output to a file by using the > operator, just like you did to create a text file with echo:

$ ps -ef > processes.txt

You could then open that file in your favorite text editor and ...