Updated SC2216 (markdown)

SC2216.md

@@ -1,20 +1,24 @@
-## Piping to 'echo', a command that doesn't read stdin. Wrong command or missing xargs?
+## Piping to 'rm', a command that doesn't read stdin. Wrong command or missing xargs?
 
 ### Problematic code:
 
 ```sh
-find . -type f | echo "Results: "
+ls | echo                      # Want to print result
+cat files | rm                 # Want to delete items from a file
+find . -type f | xargs cp dir  # Want to process 'find' output
 ```
 
 ### Correct code:
 
 ```sh
-find . -type f -print0 | xargs -0 echo "Results: "
+ls
+cat files | while IFS= read -r file; do rm -- "$file"; done
+find . -type f -exec cp {} dir \;
 ```
 
 ### Rationale:
 
-You are redirecting to one of several commands that don't read from stdin.
+You are piping to one of several commands that don't read from stdin.
 
 This may happen when: