diff --git a/Q3.md b/Q3.md
index 4e91b63..c1a622c 100644
--- a/Q3.md
+++ b/Q3.md
@@ -1,4 +1,6 @@
 Zadanie 1<br>
+cat abc.txt | tr [:space:] '****'<br>
 Zadanie 2<br>
+$cat geekfile | tr “[:lower:]” “[:upper:]”
 Zadanie 3<br>
 Zadanie 4<br>
\ No newline at end of file