Description

42sh is a command-line interpreter developed as part of the Epitech curriculum. It replicates the behavior of a basic Unix shell, inspired by TCSH. The project includes support for built-ins, line editing, redirections, pipes, command history, and aliases.

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Features

• External command execution via fork() / execve().
• Built‐ins:
  • cd, env, exit, setenv, unsetenv, which, where, repeat, echo, alias, history.
• Robust parsing:
  • LL‐style parser for command input to build an AST, followed by AST interpretation.
• Redirections:
  • Output redirection > / >>, input redirection <, and here‐doc <<.
• Multiple pipelines (|).
• Logical operators && and ||.
• Command history stored in a file and accessible via the history built-in.
• Customizable aliases.
• Line editing using arrow keys to navigate and modify input.

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Requirements

• Unix‐like environment (Linux, macOS, etc.)

Compile Instructions

To compile the standard version of 42sh, simply run make:

make

To compile a version with debug symbols enabled, use the debug rule:

make debug

To compile a version with the address sanitizer, you may use the sanitize rule:

make sanitize

When you're done, you can use the clean rule to delete any temporary files, or the fclean rule to delete everything but the source code.