direnv

Setup

For direnv to work properly it needs to be hooked into the shell. Each shell has its own extension mechanism.

Once the hook is configured, restart your shell for direnv to be activated.

BASH

Add the following line at the end of the ~/.bashrc file:

eval "$(direnv hook bash)"

Make sure it appears even after rvm, git-prompt and other shell extensions that manipulate the prompt.

ZSH

Add the following line at the end of the ~/.zshrc file:

eval "$(direnv hook zsh)"

FISH

Add the following line at the end of the ~/.config/fish/config.fish file:

>direnv hook fish | source

Fish supports 3 modes you can set with with the global environment variable direnv_fish_mode:

>set -g direnv_fish_mode eval_on_arrow    # trigger direnv at prompt, and on every arrow-based directory change (default)
set -g direnv_fish_mode eval_after_arrow # trigger direnv at prompt, and only after arrow-based directory changes before executing command
set -g direnv_fish_mode disable_arrow    # trigger direnv at prompt only, this is similar functionality to the original behavior

TCSH

Add the following line at the end of the ~/.cshrc file:

eval `direnv hook tcsh`

Elvish (0.12+)

Run:

$> direnv hook elvish > ~/.elvish/lib/direnv.elv

and add the following line to your ~/.elvish/rc.elv file:

use direnv