Created SC2008 (markdown)

SC2008.md

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+## echo doesn't read from stdin, are you sure you should be piping to it?
+
+### Problematic code:
+
+    find . | echo
+
+### Correct code:
+
+    find .
+
+### Rationale:
+
+You are piping command output to `echo`, but `echo` ignores all piped input.
+
+In particular, `echo` is not responsible for putting output on screen. Commands already output data, and with no further actions that will end up on screen. 
+
+### Exceptions:
+
+None.