diff --git a/README.md b/README.md
index 2cc664b..9b1e386 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ Following is a description of each attribute:
 
 **label:** Label that show in menus and quick search.
 
-**cmd:** Command that will be executed. You can use $0, $1, ... $n to specify custom arguments, that will be propted for user.
+**cmd:** Command that will be executed. You can use $0, $1, ... $n to specify custom arguments, that will be prompted for user.
 
 **args:** Array that contains default arguments, in case user supply anything.
 
@@ -52,7 +52,7 @@ Following is a description of each attribute:
 
 **splitChar:** Specify the char that will separate arguments of command. Default value is ':'.
 
-**opts:** Optional attributes that configure some options of execution enviroment.
+**opts:** Optional attributes that configure some options of execution environment.
 
 **opts.defaultPath:** Directory path where command will executed.
 
@@ -60,6 +60,16 @@ Following is a description of each attribute:
 
 **opts.killCmd:** Command that will be triggered by 'Kill Commands' menu option.
 
+
+
+System Parameters: Reserved variables that can be used to compose commands.
+
+**$selectedFile** Path to selected file.
+
+**$dirOfSelectedFile** Path to directory of selected file.
+
+**$projectDir** Path directory of project.
+
 Screenshots
 -----------
 
diff --git a/cmdrunner.json b/cmdrunner.json
index dfa8ae3..d61adff 100644
--- a/cmdrunner.json
+++ b/cmdrunner.json
@@ -5,7 +5,7 @@
     "key" : "Ctrl-Alt-Shift-S"
 },{
     "label": "Curl ",
-    "cmd": "curl $0 $1",
+    "cmd": "curl '$projectDir'",
     "args" : [],
     "splitChar": "|",
     "key" : ""
diff --git a/main.js b/main.js
index 7fd3956..2f92b3f 100644
--- a/main.js
+++ b/main.js
@@ -58,6 +58,12 @@ define(function (require, exports, module) {
             var doc = DocumentManager.getCurrentDocument();
 
             return !doc ? opts.defaultPath : doc.file.parentPath;
+        },
+
+        projectDir: function(opts) {
+            var dir = ProjectManager.getProjectRoot();
+
+            return dir ? dir.fullPath : '.';
         }
     };
 
diff --git a/package.json b/package.json
index eaf42c4..7676630 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
     "title": "Command Runner",
     "description": "Add hotkeys for running command line tools.",
     "homepage": "https://github.com/tarcisiojr/brackets-command-runner",
-    "version": "0.0.15",
+    "version": "0.0.16",
     "author": "Tarcísio Abadio de Magalhães Júnior <tarcisiojunior@gmail.com>",
     "license": "MIT",
     "engines": {