tylercchase / octoshell

Shell project for CS 321 (Spring 2022) at UAF.

octoshell 🐙🐚

• CS 321: Final Project (Spring 2022)

Building

mkdir build
cd build
cmake ..
make
./terminal

See it in action

Requirements

• External commands
  • ls
  • emacs
• Internal commands
  • exit: terminate the shell
  • print: print out the current pid
  • help: help information of your shell
• Multiple commands
  • ampersand (&): multiple commands on one line
• Input of lines of up to 100 characters
  • Words consist of the characters A–Z, a–z, 0–9, dash, dot, forward slash, and underscore.

octoshell's Issues

Demo video of the running program

@tylercchase – terminal recording application?

https://asciinema.org/

Fix clang-tidy + catch2 integration

• https://github.com/catchorg/Catch2/blob/devel/docs/tutorial.md#top
• https://github.com/catchorg/Catch2/blob/devel/docs/cmake-integration.md#top
• https://devblogs.microsoft.com/cppblog/visual-studio-code-c-december-2021-update-clang-tidy/

The expression contained an invalid escaped character, or a trailing escape.

libc++abi: terminating with uncaught exception of type std::__1::regex_error: The expression contained an invalid escaped character, or a trailing escape.

Comment the following lines of code:

octoshell/src/parser.cpp

Line 14 in 0346874

std::regex valid_command("^[A-Za-z0-9\\-\\.\\/\\_]+");

octoshell/src/parser.cpp

Lines 43 to 46 in 0346874

	if (!std::regex_match(command, valid_command)) {
	std::cout << "(!) Invalid command: " << command << std::endl;
	continue;
	}

Differentiate between ampersands and semicolons

• Each command has a boolean flag
• Pipe operator (class example – not required)
• Additional commands → time permitting