diff --git a/dist/session.js b/dist/session.js
index 68e14652..96c98931 100755
--- a/dist/session.js
+++ b/dist/session.js
@@ -136,12 +136,15 @@ session.prompt = function (options, cb) {
  * Gets the full (normal + mode) delimiter
  * for this session.
  *
- * @return {String}
+ * @return {String} or undefined if there is no delimiter
  * @api public
  */
 
 session.fullDelimiter = function () {
-  var result = this._delimiter + (this._modeDelimiter !== undefined ? this._modeDelimiter : '');
+  var result;
+  if (this._delimiter && this._delimiter !== '') {
+    result = this._delimiter + (this._modeDelimiter !== undefined ? this._modeDelimiter : '');
+  }
   return result;
 };
 
@@ -157,7 +160,7 @@ session.delimiter = function (str) {
   if (str === undefined) {
     return this._delimiter;
   }
-  this._delimiter = String(str).trim() + ' ';
+  this._delimiter = String(str).trim();
   if (this.isLocal()) {
     this.parent.ui.refresh();
   } else {
diff --git a/dist/ui.js b/dist/ui.js
index f8dc342d..0f5348b3 100755
--- a/dist/ui.js
+++ b/dist/ui.js
@@ -77,13 +77,11 @@ var UI = function (_EventEmitter) {
         } else if (_this.parent.session.cancelCommands) {
           // There are commands running if
           // cancelCommands function is available.
-          _this.imprint();
           _this.submit('');
           _this._sigintCalled = false;
           _this._sigintCount = 0;
           _this.parent.session.emit('vorpal_command_cancel');
         } else if (String(text).trim() !== '') {
-          _this.imprint();
           _this.submit('');
           _this._sigintCalled = false;
           _this._sigintCount = 0;
@@ -265,7 +263,7 @@ var UI = function (_EventEmitter) {
       inquirer.prompt.prompts.input.prototype.getQuestion = function () {
         self._activePrompt = this;
         var message = this.opt.message;
-        if (this.opt.default !== null && this.status !== 'answered') {
+        if ((this.opt.default || this.opt.default === false) && this.status !== 'answered') {
           message += chalk.dim('(' + this.opt.default + ') ');
         }
         self.inquirerStdout.push(message);
@@ -536,26 +534,6 @@ var UI = function (_EventEmitter) {
      * @api public
      */
 
-  }, {
-    key: 'imprint',
-    value: function imprint() {
-      if (!this.parent) {
-        return this;
-      }
-      var val = this._activePrompt.rl.line;
-      var delimiter = this._lastDelimiter || this.delimiter() || '';
-      this.log(delimiter + val);
-      return this;
-    }
-
-    /**
-     * Redraws the inquirer prompt with a new string.
-     *
-     * @param {String} str
-     * @return {UI}
-     * @api private
-     */
-
   }, {
     key: 'refresh',
     value: function refresh() {
@@ -650,4 +628,4 @@ if (!global.__vorpal.ui.exists) {
   module.exports = exports = global.__vorpal.ui.exports;
 } else {
   module.exports = global.__vorpal.ui.exports;
-}
\ No newline at end of file
+}
diff --git a/dist/vorpal.js b/dist/vorpal.js
index f62543bb..5195f838 100755
--- a/dist/vorpal.js
+++ b/dist/vorpal.js
@@ -163,11 +163,20 @@ Vorpal.prototype.parse = function (argv, options) {
           args[i] = '"' + args[i] + '"';
         }
       }
+      if (!options.keepAlive) {
+        // turn off the delimiter since we are
+        // not into the vorpal context
+        result.delimiter('');
+      }
       ui.attach(result);
       this.exec(args.join(' '), function (err) {
         if (err !== undefined && err !== null) {
           throw new Error(err);
         }
+        if (!options.keepAlive) {
+          // Exits the CLI context as the UI is still attached
+          this.exec('exit');
+        }
       });
     }
   }
@@ -609,6 +618,12 @@ vorpal._prompt = function (data) {
     return self;
   }
 
+  // this means that no delimiter has been specified
+  // and we should skip the prompt
+  if (!ssn.fullDelimiter()) {
+    return undefined;
+  }
+
   prompt = ui.prompt({
     type: 'input',
     name: 'command',
diff --git a/lib/session.js b/lib/session.js
index 058deb3c..88b4c36e 100755
--- a/lib/session.js
+++ b/lib/session.js
@@ -136,13 +136,15 @@ session.prompt = function (options, cb) {
  * Gets the full (normal + mode) delimiter
  * for this session.
  *
- * @return {String}
+ * @return {String} or undefined if there is no delimiter
  * @api public
  */
 
 session.fullDelimiter = function () {
-  var result = this._delimiter +
-   ((this._modeDelimiter !== undefined) ? this._modeDelimiter : '');
+  var result;
+  if (this._delimiter && this._delimiter !== '') {
+    result = this._delimiter + (this._modeDelimiter !== undefined ? this._modeDelimiter : '');
+  }
   return result;
 };
 
@@ -158,7 +160,7 @@ session.delimiter = function (str) {
   if (str === undefined) {
     return this._delimiter;
   }
-  this._delimiter = String(str).trim() + ' ';
+  this._delimiter = String(str).trim();
   if (this.isLocal()) {
     this.parent.ui.refresh();
   } else {
diff --git a/lib/ui.js b/lib/ui.js
index e049ed4a..1664ead9 100755
--- a/lib/ui.js
+++ b/lib/ui.js
@@ -65,13 +65,11 @@ class UI extends EventEmitter {
         } else if (this.parent.session.cancelCommands) {
           // There are commands running if
           // cancelCommands function is available.
-          this.imprint();
           this.submit('');
           this._sigintCalled = false;
           this._sigintCount = 0;
           this.parent.session.emit('vorpal_command_cancel');
         } else if (String(text).trim() !== '') {
-          this.imprint();
           this.submit('');
           this._sigintCalled = false;
           this._sigintCount = 0;
@@ -492,23 +490,6 @@ class UI extends EventEmitter {
     return this;
   }
 
-  /**
-   * Logs the current delimiter and typed data.
-   *
-   * @return {UI}
-   * @api public
-   */
-
-  imprint() {
-    if (!this.parent) {
-      return this;
-    }
-    const val = this._activePrompt.rl.line;
-    const delimiter = this._lastDelimiter || this.delimiter() || '';
-    this.log(delimiter + val);
-    return this;
-  }
-
   /**
    * Redraws the inquirer prompt with a new string.
    *
diff --git a/lib/vorpal.js b/lib/vorpal.js
index d23a2a56..17313404 100755
--- a/lib/vorpal.js
+++ b/lib/vorpal.js
@@ -163,11 +163,20 @@ Vorpal.prototype.parse = function (argv, options) {
           args[i] = `"${args[i]}"`;
         }
       }
+      if (!options.keepAlive) {
+        // turn off the delimiter since we are
+        // not into the vorpal context
+        result.delimiter('');
+      }
       ui.attach(result);
       this.exec(args.join(' '), function (err) {
         if (err !== undefined && err !== null) {
           throw new Error(err);
         }
+        if (!options.keepAlive) {
+          // Exits the CLI context as the UI is still attached
+          this.exec('exit');
+        }
       });
     }
   }
@@ -604,6 +613,12 @@ vorpal._prompt = function (data) {
     return self;
   }
 
+  // this means that no delimiter has been specified
+  // and we should skip the prompt
+  if (!ssn.fullDelimiter()) {
+    return undefined;
+  }
+
   prompt = ui.prompt({
     type: 'input',
     name: 'command',