CPShell

CPShell is a busybox-style command-line interpreter for the CASIO ClassPad II (fx-CP400), providing Unix-like shell functionality on calculator hardware. Execute commands, manage files, run scripts, and interact with the calculator system through a familiar terminal interface. Built for developers and power users who need direct system access.

Features

• Command-line interface: full-featured shell with command history and tab completion
• File system navigation: cd, ls, pwd, mkdir, rm, and other standard Unix commands
• Script execution: run shell scripts with support for variables, loops, and conditionals
• Pipe and redirection: chain commands together and redirect input/output
• Custom font rendering: optimized 5x6 and 7x8 pixel fonts for clear text display
• Texture support: integrated graphics rendering through Interchan's texture engine
• Organized file structure: clean directory hierarchy with support for three-level folder depth

Installation

1. Download the CPShell.zip file from the official repository
2. Extract the archive to access its contents
3. Copy fonts from the ./res/CPShell/fnt directory to /usr/fonts/ on your calculator
   Note: If 5x6 and 7x8 font files already exist, you may skip this step
4. Copy the CPShell.hh3 file to the root on your calculator
5. Launch CPShell from the Hollyhock launcher