LowerShell

Building

make

Usage:

./42sh

Subject

A linux shell written from scratch in C.

Features

• Spaces and tabs.
• $PATH and environment variables.
• Errors and returns values.
• Redirections ('<', '>', '<<' and '>>').
• Pipes ('|').
• Builtins: cd, echo, exit, setenv, unsetenv, which, where, history, alias, unalias, clear, repeat, set, unset
• Separators ';', '&&', '||'.
• Inhibitors ('').
• Globbing ('*', '?', '[]').
• Backticks ('`').
• Parentheses ('(' and ')').
• Variables (local and env).
• Special variables (term, precmd, cwdcmd, cwd, ignoreeof).
• History (key UP and DOWN)
• Aliases
• Line edition (multiline, dynamic rebinding, auto-completion dynamic).
• Scripting

Examples:

Contributors:

• @SimonRacaud
• @AurelienJoncour
• @sullmin
• @vincent-andrieu