Start of environment variables page

Environment-Variables.md

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+A [new feature](https://github.com/shazow/ssh-chat/pull/333) of `ssh-chat` is the ability to define locally what settings you would like to have in your `ssh-chat` session before connecting. The `ssh-chat` server will interpret your local variables and change settings to match yours accordingly (if they can be matched).
+
+## `SSHCHAT_THEME`
+
+The simplest variable is the `SSHCHAT_THEME` variable which allows you to define what theme you would like for your session. This can be defined to match any theme defined within `ssh-chat`, so for example to connect using the `solarized` theme, which is normally activated by running `/theme solarized`, you can instead do the following:
+```bash
+$ SSHCHAT_THEME=solarized ssh -i my_id_file username@ssh.chat
+```
+
+Upon joining, your session's theme will automatically be `solarized`. This works for all themes (`mono`, `colors`, `hacker`, `solarized`, etc).
+
+## `SSHCHAT_TIMESTAMP`
+
+`ssh-chat` supports the ability to log messages with a datetime stamp next to each received message. This behavior is enabled by running a `/timestamp` command within the chat. It can be turned on before connecting by doing the following:
+```bash
+$ SSHCHAT_TIMESTAMP=1 ssh -i my_id_file username@ssh.chat
+```
+It also supports the ability to pre-load a datetime format as well.
+
+
+## `TERM`
+
+The `TERM` variable is meant to enable specific modes of `ssh-chat` which changes how messages are displayed when received. Currently, only a `bot` mode is supported [right now](https://github.com/shazow/ssh-chat/pull/341), which makes it easier for programs to be created to read messages from `ssh-chat` without having to interpret ANSI codes.
+
+To turn on a specific mode, you can run the following:
+```bash
+$ TERM=bot ssh -i my_id_file username@ssh.chat
+```
+