In an app but need to quickly execute a UNIX command? Do you not feel like waiting for MobileTerminal to launch?
Meet AlertScript.
AlertScript is a alert-based terminal window (so you never need to leave your app) that can handle beyond 50MegaBytes in file I/O in about 6 seconds without crashing/hanging Springboard. Also, AlertScript notifies you when your script is finished with a handy little alert.
Works on all iDevices.
Settings are configured in Settings > AlertScript
Offline help can be found in Settings > AlertScript > Help
