minishell

A small, interactive Unix shell written in C. Implements a Bash-like prompt, parsing, pipelines, redirections, environment expansion, signals, and core built-ins.

Features

• Interactive prompt with command history (via readline).
• Program search & exec via $PATH, plus absolute/relative paths.
• Quoting rules:
  • single quotes '...' disable all expansions,
  • double quotes "..." keep $VAR expansion.
• Redirections: <, >, >>, and heredoc << DELIM.
• Pipelines: cmd1 | cmd2 | cmd3.
• Expansions: $VAR and $? (last pipeline exit status).
• Signals: in interactive mode
  • Ctrl-C → new prompt on a new line,
  • Ctrl-D → exit,
  • *Ctrl-* → no effect.
• Built-ins: echo -n, cd, pwd, export, unset, env, exit.

Build & Run

The project provides a Makefile with standard rules (all, clean, fclean, re), compiles with cc -Wall -Wextra -Werror, and can use libft. Link readline (and your system’s termcap/terminfo if needed).

# Build
make

# Run
./minishell

Usage

Use minishell like a normal shell:

minishell$> echo Hello
Hello
minishell$>