diff --git a/Day1.md b/Day1.md
new file mode 100644
index 0000000..fb04ecb
--- /dev/null
+++ b/Day1.md
@@ -0,0 +1,33 @@
+# Linux - Open Source
+Opensource = Read code and Change code
+
+---
+# OS 
+* CLI
+* GUI
+
+# Commands
+```
+ls    -  (Listing all folder and files in directory)
+```
+```
+cd Path/Path  - ( Change Directory)
+```
+```
+date - (It show current date of OS)
+```
+```
+cal - (It show whole current month callendar)
+    * cal 10 2020 ---- ( cal (month) (year) )
+    * cal 2020 ----- (  It shows all year callender)
+```
+```
+which (software_name)  - ( It show the software path)
+```
+```
+echo message  - (its print the message on terminal)
+```
+```
+espeak-ng Message - ( It will speak the message)
+date | espeak-ng  - (it speak the command result)
+```