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eda53cccd6
- Backed out Windows-related work in `setup.py`, because it is still in-progress - Minor changes to the `README`
148 lines
4.4 KiB
Markdown
148 lines
4.4 KiB
Markdown
cheat
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=====
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`cheat` allows you to create and view interactive cheatsheets on the
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command-line. It was designed to help remind \*nix system administrators of
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options for commands that they use frequently, but not frequently enough to
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remember.
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`cheat` depends only on `python` and `pip`.
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PyPI status:
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[](https://pypi.python.org/pypi/cheat/)
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[](https://pypi.python.org/pypi/cheat/)
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Example
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-------
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The next time you're forced to disarm a nuclear weapon without consulting
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Google, you may run:
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cheat tar
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You will be presented with a cheatsheet resembling:
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```
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# To extract an uncompressed archive:
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tar -xvf /path/to/foo.tar
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# To extract a .gz archive:
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tar -xzvf /path/to/foo.tgz
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# To create a .gz archive:
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tar -czvf /path/to/foo.tgz /path/to/foo/
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# To extract a .bz2 archive:
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tar -xjvf /path/to/foo.tgz
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# To create a .bz2 archive:
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tar -cjvf /path/to/foo.tgz /path/to/foo/
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```
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To see what cheatsheets are availble, run `cheat -l`.
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Note that, while `cheat` was designed primarily for *nix system administrators,
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it is agnostic as to what content it stores. If you would like to use `cheat`
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to store notes on your favorite cookie recipes, feel free.
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Installing
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----------
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### Using pip ###
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sudo pip install cheat
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### Manually ###
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First install the required python dependencies with:
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sudo pip install docopt pygments
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Then, clone this repository, `cd` into it, and run:
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sudo python setup.py install
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Modifying Cheatsheets
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---------------------
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The value of `cheat` is that it allows you to create your own cheatsheets - the
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defaults are meant to serve only as a starting point, and can and should be
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modified.
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Cheatsheets are stored in the `~/.cheat/` directory, and are named on a
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per-keyphrase basis. In other words, the content for the `tar` cheatsheet lives
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in the `~/.cheat/tar` file.
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Provided that you have an `EDITOR` environment variable set, you may edit
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cheatsheets with:
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cheat -e foo
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If the 'foo' cheatsheet already exists, it will be opened for editing.
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Otherwise, it will be created automatically.
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After you've customized your cheatsheets, I urge you to track `~/.cheat/` along
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with your [dotfiles][].
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Configuring
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-----------
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### Setting a DEFAULT_CHEAT_DIR ###
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Personal cheatsheets are saved in the `~/.cheat` directory by default, but you
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can specify a different default by exporting a `DEFAULT_CHEAT_DIR` environment
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variable:
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export DEFAULT_CHEAT_DIR=/path/to/my/cheats
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### Setting a CHEATPATH ###
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You can additionally instruct `cheat` to look for cheatsheets in other
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directories by exporting a `CHEATPATH` environment variable:
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export CHEATPATH=/path/to/my/cheats
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You may, of course, append multiple directories to your `CHEATPATH`:
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export CHEATPATH=$CHEATPATH:/path/to/more/cheats
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You may view which directories are on your `CHEATPATH` with `cheat -d`.
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### Enabling Syntax Highlighting ###
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`cheat` can apply syntax highlighting to your cheatsheets if so desired. To
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enable this feature, set a `CHEATCOLORS` environment variable:
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export CHEATCOLORS=true
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### Enabling Command-line Autocompletion ###
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The `cheat/autocompletion` directory contains scripts to enable command-line
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autocompletion for various shells. To activate autocompletion, simply copy the
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appropriate script to the appropriate path on your system. (The "appropriate
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path" will vary on a per-platform basis, so this documentation shall not
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speculate as to where that may be.)
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Related Projects
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----------------
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- [lucaswerkmeister/cheats][1]: An implementation of this concept in pure bash
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that also allows not only for numerical indexing of subcomands but also
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supports running commands interactively.
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- [jahendrie/cheat][2]: A bash-only implementation that additionally allows for
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cheatsheets to be created and `grep` searched from the command-line.
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([jahendrie][] contributed key ideas to this project as well.)
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- [`cheat` RubyGem][3]: A clever gem from 2006 that clearly had similar
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motivations. It is unclear whether or not it is currently maintained.
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[dotfiles]: http://dotfiles.github.io/
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[jahendrie]: https://github.com/jahendrie
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[1]: https://github.com/lucaswerkmeister/cheats
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[2]: https://github.com/jahendrie/cheat
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[3]: http://errtheblog.com/posts/21-cheat
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[4]: https://github.com/chrisallenlane/cheat/pull/77
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