There is a pocket reference to bash published by O'Reilly: "bash Pocket Reference" by Robbins and Arnold. This book is handy as a quick reference to keep near your computer desk, or in your laptop case. As far as I know, this book is not available in a digital format.

Another O'Reilly offering is "Learning the bash Shell" by Cameron Newham. This one is available in digital form from Amazon.

These two cover the bash shell which is the most commonly used shell in Linux.

For the command line in general, this one from Wiley: Linux Command Line and Shell Scripting Bible by Richard Blum and Christine Bresnahan is fairly complete. It is also available in digital for from Amazon.

For a bit more advanced uses, there is the book: Pro Bash Programming by Chris F.A. Johnson. This one is published by Apress. This book is for when you are ready to add your own commands via bash scripting. Once you get comfortable with the command line in general, and bash in particular, this book will help you get to the next level of command line use. This is another one that I don't think is available in digital form.

You can also do a web search for "using the bash shell" or "using the linux command line" and you will find many links to information. Some will be better than others, but the books I listed above should prove useful.

1 members found this post helpful.

better:

I thought much the same.

When I looked at the screenshot in post #5 it appears that OP has his Pictures directory, Desktop directory, Documents directory and etc. inside of the Downloads directory. <Or> exact copies of those directories in his Downloads directory.

@sryzdn:

Try making a new directory with "mkdir" <anyname> where does that new directory place it'self?