diff --git a/guide/english/terminal-commandline/macos-terminal/index.md b/guide/english/terminal-commandline/macos-terminal/index.md
index f14ee7dae5..2a40fb8aac 100644
--- a/guide/english/terminal-commandline/macos-terminal/index.md
+++ b/guide/english/terminal-commandline/macos-terminal/index.md
@@ -66,6 +66,11 @@ Use the following syntax to delete a file
 #### Terminate the process which uses the port you want to use
 ``` kill <PID> ```
 
+
+#### Previewing file
+If you would like to preview a file, type the command `cat <name of document>` and you would be able to preview a text document through the terminal.
+
+
 ## iTerm2
 
 iTerm2 is an alternative to the legacy terminal in Mac OS. iTerm2 brings some new features such as: