90s

Minimalist, customizable shell written in C99 with syntax highlighting.

• Disclaimer: This project is for me to learn to write Unix syscalls, code might be inefficient, feel free to point out the mistakes and open a issue for that!

Preview

Features

• No dependencies except a compiler
• Showing current time and directory with custom color
• Syntax highlighting on valid commands using ANSI colors
• History navigation using up and down keys with history command
• Support for environment variables
• Editing using left and right arrow keys
• !! to repeat last command
• Pipes
• autojump to directorys
• stdin, stdout, stderr redirect
• Background jobs

Built in commands

• cd
• help
• exit
• history
• export
• source
• j
• bg

Todo Features

• Tab completion
• Git integration
• Allow arguments with space in double quotes
• Underline file path if it exists echo -e "\033[4mabc\033[0m"
• Aliases

Usage

$ ./90s

# > to redirect stdout
# < to redirect stdin
# 2> to redirect stderr
# >> to append to file
# & to run command in background
# | to pipe
# !! to repeat last command
# >& to redirect both stdout and stderr

Dependencies

None

Building

You will need to run these with elevated privilages.

$ make
# make install

Notes

• History is either saved in HOME or XDG_CONFIG_HOME if it is defined

Contributions

Contributions are welcomed, feel free to open a pull request.

License

This project is licensed under the GNU Public License v3.0. See LICENSE for more information.

Credits

• Tutorial - Write a shell in C
• dash
• Shell assignment
• khol