pizzashell

PizzaSHELL (a.k.a.) pzash

Features

Implemented

• Editable input, history, and filename autocompletion (through <readline.h>)
• Pizza prompt 🍕 (shows current working directory and timestamp)
• Piping!
• Special character expansion (currently only $ and ~)
• Whitespace stripping
• Non-interactive execution (with -c)
• True wildcard expansion/globbing (*)
• Quote handling (especially for non-interactive mode)
  • both of the above implemented with <wordexp.h>

Built-ins

• cd with previous directory switching ($ cd -)
• Help function
• Two-operand math
• File info (simplified lstat)
• Echo

TODO

• Expose <math.h> functions
• Aliases (e.g. ll=ls -l; ls=ls -g; grep=grep --color)
  • especially for color-by-default
• Piping builtins
• Multiline input
• Command autocompletion
• Pizza ordering

Known Bugs

• currently SIGINT (sent by Ctrl-C) is caught by the parent process, killing the whole shell rather than just the forked child