I've just released the first Internet edition of my new book, Adventures with the Linux Command Line. This 250+ page volume is a sequel/supplement to The Linux Command Line (TLCL). With 14 action-packed chapters, it covers a variety of skill-enhancing topics intended for makers, students, and anyone who wants to take their knowledge of the command line and shell scripting to the next level.
The First Internet Edition is available in two forms. First, as a series of web pages in the Adventures section of LinuxCommand.org and second, as a PDF book like the Internet edition of The Linux Command Line. The PDF book is released under the same Creative Commons license (BY-NC-ND) as TLCL.
The book is available now for free download. You can get it in the Books section of LinuxCommand.org.