diff --git a/TipsShell.md b/TipsShell.md
index d956cc1b..bd78e58b 100644
--- a/TipsShell.md
+++ b/TipsShell.md
@@ -463,4 +463,3 @@ $ grep -P '\t'
 ~~~{.bash}
 (for id in $(mailq | grep MAILER\-DAEMON | cut -d' ' -f1); do postcat -q $id| grep Diagnostic\-Code\:; done) | sort | uniq -c | sort -n
 ~~~
-.