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You don't need to install anything, to start using cheat.sh. The only tool that you need is curl, which is typically installed in every system. In the rare cases when curl is not installed, there should be one of its alternatives in the system: wget, wget2, httpie, ftp (with HTTP support), fetch, etc.

There are two cases, when you want to install cheat.sh locally:

  1. You plan to use it off-line, without Internet access;
  2. You want to use your own cheat sheets (additionally, or as a replacement).

In this case you need to install cheat.sh locally.

How to install cheat.sh locally

To use cheat.sh offline, you need to:

  1. Install it,
  2. Fetch its data sources.

If you already have the cht.sh cli client locally, you can use it for the standalone installation. Otherwise it must be installed first.

    curl https://cht.sh/:cht.sh > ~/bin/cht.sh
    chmod +x ~/bin/cht.sh

Now you can install cheat.sh locally:

    cht.sh --standalone-install

During the installation process, cheat.sh and its data sources will be installed locally.

By default ~/.cheat.sh is used as the installation directory.

cheat.sh standalone installation

If you don't plan to use Redis for caching, switch the caching off in the config file:

    $ vim ~/.cheat.sh/etc/config.yaml
    cache:
      type:   none

or with the environment variable CHEATSH_CACHE_TYPE=none.

Update cheat sheets

Cheat sheets are fetched and installed to ~/.cheat.sh/upstream. To keep the cheat sheets up to date, run the cheat.sh update-all command on regular basis. Ideally, add it to cron:

0 5 0 0 0 $HOME/.cheat.sh/ve/bin/python $HOME/.cheat.sh/lib/fetch.py update-all

In this example, all information sources will be updated each day at 5:00 local time, on regular basis.

cheat.sh server mode

Your local cheat.sh installation is full-fledged, and it can handle incoming HTTP/HTTPS queries.

To start cheat.sh in the server mode, run:

$HOME/.cheat.sh/ve/bin/python $HOME/.cheat.sh/bin/srv.py

You can also use gunicorn to start the cheat.sh server.

Docker

You can deploy cheat.sh as a docker container. Use Dockerfile in the source root directory, to build the Docker image:

docker build .

Limitations

Some cheat sheets not available in the offline mode for the moment. The reason for that is that to process some queries, cheat.sh needs to access the Internet itself, because it does not have the necessary data locally. We are working on that how to overcome this limitation, but for the moment it still exists.

Mac OS X Notes

Installing Redis

To install Redis on Mac OS X (using brew):

$ brew install redis
$ ln -sfv /usr/local/opt/redis/*.plist ~/Library/LaunchAgents
$ launchctl load ~/Library/LaunchAgents/homebrew.mxcl.redis.plist
$ redis-cli ping
PONG