minishell

42's project: write a mini... shell.

Dependencies:

• readline library

Ubuntu/Debian:

apt install libreadline-dev

19's Macs:

brew install readline

Obs: You will also need to include Homebrew's directories in the list of places the compiler will be looking for includes and library files. Just uncomment the two lines as indicated in the Makefile.

Usage:

cd into this repo

compile project: make

launch program: ./minishell

Functionalities:

• search and launch executable based on the PATH variable
• redirections: <, << (here document), > and >>
• pipes ( | )
• environmental variables ($VAR_NAME)
• "?" special variable ($?)
• history of commands (arrows up and down)
• parsing of text between ' and " like bash
• ctrl-C, ctrl-D and ctrl-\ : same as bash
• builtins:
  • echo
  • cd
  • pwd
  • export
  • unset
  • env
  • exit

Known issues:

• ctrl - \ not working as it should on 19's Macs.

Recommended resources if you're doing this project:

• How Unix Works: Become a Better Software Engineer
• Unix Processes in C (YouTube playlist)
• Bash Reference Manual