add command ls

commands/help.php

@@ -7,6 +7,6 @@ function help($commands)
     } else if (sizeof($commands) == 2 && file_get_contents("static/help/$commands[1].txt") != NULL) {
         file_put_contents("recent.txt", file_get_contents("static/help/$commands[1].txt"), FILE_APPEND);
     } else {
-        file_put_contents("recent.txt", "Invalid number of arguments.<br/>", FILE_APPEND);
+        file_put_contents("recent.txt", "Invalid number of arguments or command not found.<br/>", FILE_APPEND);
     }
 }

commands/ls.php

@@ -0,0 +1,13 @@
+<?php
+function ls($commands)
+{
+    $pwd = file_get_contents("pwd.txt");
+    if (sizeof($commands) == 1) {
+        $files = scandir("fileroot" . $pwd);
+        foreach ($files as $file) {
+            file_put_contents("recent.txt", $file . "<br/>", FILE_APPEND);
+        }
+    } else {
+        file_put_contents("recent.txt", "Invalid number of arguments.<br/>", FILE_APPEND);
+    }
+}

commands/when_adding_a_new_command

@@ -0,0 +1,3 @@
+make php
+write help.txt <command_name>.txt
+edit terminal.php

static/help/ls.txt

@@ -0,0 +1,2 @@
+ls - lists the contents of a directory<br/>
+usage: ls<br/>

static/terminal.php/help.txt

@@ -2,6 +2,7 @@ cat - displays the contents of a file<br/>
 cd - changes the working directory<br/>
 clear - clears the screen<br/>
 help - displays this help message<br/>
+ls - lists the contents of a directory<br/>
 mkdir - creates a new directory<br/>
 pwd - shows the working directory<br/>
 rm - deletes a file or directory<br/>

terminal.php

@@ -64,6 +64,9 @@ if (!opendir("fileroot")) {
     } else if ($commands[0] == "cat") {
         include "commands/cat.php";
         cat($commands);
+    } else if ($commands[0] == "ls") {
+        include "commands/ls.php";
+        ls($commands);
     } else {
         file_put_contents("recent.txt", "Unknown command.<br/>try 'help' or 'help [command]'<br/>", FILE_APPEND);
     }