Update page 'Q3'

Q3.md

@@ -1,6 +1,9 @@
 Zadanie 1<br>
-cat abc.txt | tr [:space:] '****'<br>
+cat abc.txt | tr [:space:] '*'<br>
 Zadanie 2<br>
-$cat geekfile | tr “[:lower:]” “[:upper:]”
+sed '1,$ s/txt/TXT/'<br>
 Zadanie 3<br>
+if [ -o ps ax.Contains("2592 pts/2 Ss 0:00 /bin/bash ]<br>
+  then<br>
+	exit<br>
 Zadanie 4<br>