ShellBar 1.0 for Mac can be downloaded from our website for free. The actual developer of this free Mac application is Alea software. The application is included in Developer Tools.
From the developer:
ShellBar is a standard application which accepts "shell scripts" as documents. Simply rename your ".sh" documents to ".shbar" documents. Open the .shbar document, doubleclicking on it, and the shellbar window will appear.
The script execution will start shortly, and when the end is reached, the progress bar will be at "100%" position, the semaphore lights will pass from yellow to green. And the application will quit.
You may want to check out more software for Mac, such as AskKey, ClippingDetector or Bugz, which might be similar to ShellBar.