diff --git a/readme.md b/readme.md
index 8ef8206..ae78b26 100644
--- a/readme.md
+++ b/readme.md
@@ -36,6 +36,7 @@ As a computer expert, we want to be more efficient and do our jobs better. We kn
 1. [show a calendar](#showcal)
 1. [find a future date](#calcdate)
 1. [use a calculator](#calculator)
+1. [kill a program](#killprogram)
 
 
 ## <a id="copyfile"></a>copy a file
@@ -258,5 +259,13 @@ Want to use a calculator?
 bc
 ```
 
+## <a id="killprogram"></a>force quit a program
+
+**STOP FORCE QUITE A PROGRAM USING GUI**
+
+```
+killall program_name
+```
+
 ===
 _Remember, you can always google or `man` the commands you are not familiar with._