Useless Shell

Features

• Command auto completion (Tab)

• Command syntax hints (Ctrl+Tab)

• List commands with help

• Users

  • Saved to file
  • Password hashing using the RSA Data Security, Inc. MD5 Message Digest Algorithm
  • Superusers

• History

  • Saved to file per user (& guest)
  • View with history
  • Clear with history clear
  • Navigation (↑ & ↓)

• Easy command declaration (see cmd_defs.c)

  CMD(
    .name = "history",
    .description = "Display the session command history",
    .impl = cmd_history,
    SUB_CMDS(
      {
        .name = "clear"
      }
    )
  ),

• Command verification and unit testing

• Input buffer editing

  • Cursor navigation (← & →)
  • Word navigation (Ctrl+← & Ctrl+→)
  • Backspace
  • Back word (Ctrl+Backspace)
  • Delete
  • Delete word (Ctrl+Del)
  • Clear (escape)

Known issues

• Only compiles on Windows, though it shouldn't be hard to implement the remining platform-specific functions for Linux
• Large paths and inputs are not checked

Installation

A .useless_shell directory will be created in ~/AppData/Roaming upon first run to store command history and user data.

Uninstallation

Login as admin user (login admin) and run uninstall. To do it manually, delete the .useless_shell directroy and the executable.