What exactly is the difference between piping and redirection?

Question

'cause both seem identical to me...

Answer 1

The way I've generally seen the terminology used is:

"Redirection" is shifting stdout or stderr into a file:
ls -l > /tmp/myListing

"Piping" is shifting stdout or stderr to the stdin stream of another program:
ls -l | grep myFile

Answer 2

They aren't, stdout, stdin and stderr are always open file handles, redirecting them points them to someplace else. Pipes are created separate from these three. The underlying mechanisms are the same, but for example you can never run out of file handles when redirecting, but with piping you can.

Answer 3

redirecting is sending from a location to another location.

Lets say A B C is three place. You want to go from A to B. And when you came at B. B will automatically transfer you to C location. Its redirecting.

Thanks