MINISHELL

malloc, free, write, open, read, close, fork, wait, waitpid, wait3, wait4, signal, kill, exit, getcwd, chdir, stat, lstat, fstat, execve, dup, dup2, pipe, opendir, readdir, closedir, strerror, errno

This project teach us:

• Advance parsing.
• Multiple process with fork.
• Shell command.
• Control of command line.
• Control of signal.

• Show a prompt when waiting for a new command.
• Search and launch the right executable (based on the PATH variable or by using relative or absolute path) like in bash.
• It must implement the builtins like in bash:.
• echo with option ’-n’.
• cd with only a relative or absolute path.
• pwd without any options.
• export without any options.
• unset without any options.
• env without any options and any arguments.
• exit without any options.
• ; in the command should separate commands like in bash.
• ’ and " should work like in bash except for multiline commands.
• Redirections < > “>>” should work like in bash.
• Pipes | should work like in bash.
• Environment variables ($ followed by characters) should work like in bash.
• $? should work like in bash.
• ctrl-C, ctrl-D and ctrl-\ should have the same result as in bash.