diff --git a/cli.php b/cli.php
index 9e9358b..b0aa951 100644
--- a/cli.php
+++ b/cli.php
@@ -9,4 +9,8 @@ function checkIsCli():string
     return (in_array(php_sapi_name(), $validCli)) ? 'cli' : 'not cli';
 }
 
-echo checkIsCli();
\ No newline at end of file
+echo checkIsCli();
+exec('ls',$output);
+print_r($output);
+readline_add_history('ls');
+print_r(readline_list_history());
\ No newline at end of file