# 2. Command Line

### Topics

* What is the command line and getting help on it
* How to use command line arguments and options
* How to read text files

### Sections

1. [Intro to Command Line](/tcm/courses/linux-101/2-command-line/intro-to-commandline.md)
2. [Getting help on the Command Line](/tcm/courses/linux-101/2-command-line/getting-help.md)
3. [Command Line Arguments and Options](/tcm/courses/linux-101/2-command-line/arguments-options.md)
4. [Reading Text Files](/tcm/courses/linux-101/2-command-line/read-textfiles.md)


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://blog.syselement.com/tcm/courses/linux-101/2-command-line.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.