Linux.com: CLI for Noobies: Need Redirection?

“OK, noobies, wake up from that GUI-induced stupor you’re in and
follow me. This week’s column is going to take you in new
directions–or should I say redirections–on the command line
interface. You’re probably already familiar with standard
transmissions, Standard Oil, and standard rates. For the momement,
forget all about those standards and focus on these: STDIN, STDOUT,
and STDERR.

“You may recall from an earlier column about files and streams
that by default the STDIN (standard input) stream comes from your
keyboard, and STDOUT (standard output) goes to your terminal.
That’s where the process reading STDIN and writing STDOUT normally
puts STDERR (standard error) as well. Let’s take a look at a few
ways we can redirect those standard streams…”

Complete
Story