More concret on the common commands provided by [coreutils](https://en.wikipedia.org/wiki/List_of_GNU_Core_Utilities_commands), [busybox](https://en.wikipedia.org/wiki/BusyBox#Commands) or [toybox](https://landley.net/toybox/help.html), see [Developer Notes](doc/7_develop.md#common-commands)
Bashbot [Documentation](https://github.com/topkecleon/telegram-bot-bash) and [Downloads](https://github.com/topkecleon/telegram-bot-bash/releases) are availible on www.github.com
At the beginning bashbot was simply the file ```bashbot.sh``` I can copy everywhere and run the bot. Now we have 'commands.sh', 'mycommands.sh', 'modules/*.sh' and much more.
Bash scripts in general are not designed to be bullet proof, so consider this Bot as a proof of concept. Bash programmers often struggle with 'quoting hell' and globbing, see [Implications of wrong quoting](https://unix.stackexchange.com/questions/171346/security-implications-of-forgetting-to-quote-a-variable-in-bash-posix-shells)
Whenever you are processing input from from untrusted sources (messages, files, network) you must be as carefull as possible, e.g. set IFS appropriate, disable globbing (set -f) and quote everthing. In addition delete unused scripts and examples from your Bot, e.g. scripts 'notify', 'calc', 'question', and disable all not used commands.
A powerful tool to improve your scripts is ```shellcheck```. You can [use it online](https://www.shellcheck.net/) or [install shellcheck locally](https://github.com/koalaman/shellcheck#installing). Shellcheck is used extensive in bashbot development to enshure a high code quality, e.g. it's not allowed to push changes without passing all shellcheck tests.
In addition bashbot has a [test suite](doc/7_develop.md) to check if important functionality is working as expected.
**Never run your Bot as root, this is the most dangerous you can do!** Usually the user 'nobody' has almost no rights on Unix/Linux systems. See [Expert use](doc/4_expert.md) on how to run your Bot as an other user.
**Your Bot configuration must no be readable from other users.** Everyone who can read your Bots token can act as your Bot and has access to all chats your Bot is in!
Everyone with read access to your Bot files can extract your Bots data. Especially your Bot Token in ```token``` must be protected against other users. No one exept you must have write access to the Bot files. The Bot must be restricted to have write access to ```count``` and ```tmp-bot-bash``` only, all other files must be write protected.
To set access rights for your bashbot installation to a reasonable default run ```sudo ./bashbot.sh init``` after every update or change to your installation directory.
Bashbot is not more (in)secure as any other Bot written in any other language, we have done our best to make it as secure as possible. But YOU are responsible for the bot commands you wrote and you should know about the risks ...
