3  3. Intro to Bash - external resources

This section of the book focuses on intro to the “Bash Shell” command line interface program. The links below are from external sources. You can use this to supplement the material in this book.

3.1 Ryans Tutorials

The following tutorial provides an intro to using Bash. The title of this tutorial is “Linux Tutorial” as Bash is commonly used on the Linux operating system. However, this tutorial also applies to using Bash on the Mac and on Windows.

https://ryanstutorials.net/linuxtutorial/

Most of the information that we covered before the midterm can be found in the first 8 sections of this tutorial. Links are below along with some of my own comments. Please use the notes on this website to study for the midterm.

• The Command Line - What is it, how does it work and how do I get to one.

• Basic Navigation - An introduction to the Linux directory system and how to get around it.

• More About Files - Find out some interesting characteristics of files and directories in a Linux environment.

• Manual Pages - Learn how to make the most of the Linux commands you are learning.

  You should know how to read the contents of a “man page”.

  Note that the “man” command isn’t installed by default on posit.cloud nor on Mac or Windows Bash environments. However, you can search online for any man page, (e.g. google for man ls).

  Alternatively , you can access the man pages here: https://man7.org/linux/man-pages/dir_section_1.html

• File Manipulation - How to make, remove, rename, copy and move files and directories.

• You are NOT responsible for the “vi” editor. “vi” is a text editor that is commonly found in most Bash environments. While it is useful to know, vi can be a bit confusing for new users. Vi Text Editor - Discover a powerful Linux based text editor.

• Wildcards - Also referred to as globbing, this is a means to refer to several files in one go.

• WILF ONLY (we learned the basic concepts about how to understand the first column of info that is output by the “ls -l” command. You are NOT responsible for the chmod command that is described here.)
  Permissions - Learn to identify and change the permissions of files and directories and what the consequences of these are.