Gain insights into the command-line interface, delve into navigating file systems, creating scripts, and automating tasks to enhance productivity and control your computer efficiently.

Small, Sharp Software Tools by The Pragmatic Programmer_ .png

ubuntu.tar.gz

Python job

ncjob

In this course, you will get the chance to explore the command-line interface (CLI), starting with basics like navigating file systems and working with directories and files. Then, you will use those building blocks to tackle more advanced features and tasks within the CLI. You will also learn to turn basic commands into executable scripts and easily automate common tasks. This course will empower you to put the interface to work, take complete control of your computer, and hack your way to productivity.

Harnessing the Power of the Command-Line Interface

# Relatives paths

So far, we’ve been navigating using relative paths. That means we’ve been specifying the destination relative to our current working directory or our current location on the filesystem. When we’re at the filesystem’s root and type `cd var`, the `var` directory is something we can see with the `ls` command. We and the `var` directory are in the same location on the filesystem, and the command we specified said, “Switch to the `var` directory that’s in the same folder that I’m currently working in.”

# Absolute paths

We can navigate the filesystem much more quickly by using the entire path to a directory from the filesystem’s root. Let’s navigate to the `/usr/bin` directory. We have to go to the `/usr` folder first and then open the `bin` directory in a GUI. But the `cd` command can take entire file paths so that we can jump to the `/usr/bin` directory in a single command.

```
$ cd /usr/bin
```

This command says:
1. Go to the filesystem’s root.
2. Go into the `usr` folder.
3. Go into the `bin` folder.


Try moving around to a few locations this way. Navigate to the `/usr/lib` directory, and then navigate back to the `/var` directory:

```bash
$ cd /usr/lib
 
$ pwd

$ cd /var

$ pwd
```

Use the terminal below to try these commands.

Learn about relative and absolute paths in a Linux environment for faster navigation.

Introduction

Creating an Ubuntu Virtual Machine with VirtualBox

Navigating the Filesystem

Working with Files and Directories

Streams Of Text

The Shell and Environment

Running and Managing Programs

Networking Tools

Automation

Additional Programs

Conclusion

Relative and Absolute Paths

Relatives paths