Reddit mentions of Linux Pocket Guide: Essential Commands

You just have to jump in and do stuff. Using it as your primary OS or always for a particular task (e.g. always use it for internet browsing) is a good way to become familiar with a linux desktop environment.

As for the command, whenever you want to:

• check process usage (Task Manager in Windows)
  
• see how much memory is free ( 'free' command, 'df' for disk usage -- it stands for -disk free-)
  
• make a new directory ('mkdir')
  
• change file permissions ('chmod')
  
• edit a text file (Vi Improved, aka Vim -- http://www.vim.org/, cheat sheet )
  
• listen to music (http://www.tuxarena.com/2011/12/10-console-music-players-for-linux/)
  
• other general tasks
  
  Try to make all of that happen in a command-line/terminal. If you can't figure out a command/program's parameters, check the man (manual) file using the 'man' command ('man <command name>).
  
  For some command command references:
  https://files.fosswire.com/2007/08/fwunixref.pdf
  http://cc.iiti.ac.in/lcommands.pdf
  http://www.pixelbeat.org/cmdline.html
  http://www.computervillage.org/articles/CommandLine.pdf
  
  It may seem silly and retro/outdate, but PRINT out a reference sheet. If it's less than 10 pages it's hardly an environmental crisis.
  
  http://linuxcommand.org/index.php
  
  [ Do some basic software development: hello world, a calculator, a text adventure game, dice roller ]
  
  Also install some software development tools and write some basic C/C++ programs and learn about make files. Most of the times installing new software from source is as simple as downloading the source, extracting it, and then running a number of tasks via the make file (e.g. configure, make, make install, etc).
  
  Learning how to compile basic programs on the command line will make compiling other programs from source a little less opaque. The compiler produces object files from source code and links them to produce an executable file.
  
  [ Install some software from source ]
  
  http://www.thegeekstuff.com/2012/06/install-from-source/
  https://www.linux.com/learn/intro-to-linux/2017/3/how-install-packages-source-linux
  
  Sticking to simpler software with fewer dependencies (libraries and other software that your new software depends* upon to function properly) is recommended as you should encounter fewer errors if any.
  
  You can always skip this stuff and use a package manager (command line or GUI) if that suits you more.
  https://help.ubuntu.com/community/AptGet/Howto
  https://www.lifewire.com/guide-to-synaptic-package-manager-2205707
  
  [ Reading ]
  
  If you can tolerate reading books and are willing to spend some money, these may be of use to you:
  
  Linux Pocket Guide, 3rd Edition: Essential Commands (By: Daniel Barrett)
  O'Reilly Media
  http://shop.oreilly.com/product/0636920040927.do
  
  Linux in a Nutshell, 6th Edition: A Desktop Quick Reference (By Stephen Figgins, Arnold Robbins, Ellen Siever, Robert Love)
  O'Reilly Media
  http://shop.oreilly.com/product/9780596154493.do
  
  If the price is an issue, shop on amazon and search ebay for a used copy. For the pocket reference at least a lot of stuff is likely to very much the same even in a previous revision/edition.
  
  https://www.amazon.com/Linux-Pocket-Guide-Essential-Commands/dp/1491927577/
  ^ currently ~$10 on Amazon
  
  https://www.amazon.com/Linux-Nutshell-Desktop-Quick-Reference/dp/0596154488/
  ^ currently ~$28 on Amazon
  
  I'd strongly recommend the pocket guide and the other reference may be of some use as well.
  
  P.S.
  If you aren't sure what Linux "distribution" you should install and use I'd strongly recommend a Debian derivative (a version or variant of Linux that's based on the Debian distribution) or another popular one so you will be able to benefit from common tutorials and the familiarity with it that others users have when you end up needing help.
  
  Debian
  Ubuntu
  Linux Mint
  
  You can search for other Linux distributions, debian-based and not, using the search tool at https://distrowatch.com/

I will be taking the current version of the Linux+ test instead of the beta of the new version.

1. I recommend, first, learning from a book that covers many of the Linux commands and their command-line options. I'm using "Linux Pocket Guide - Essential Commands, 3rd edition" by Daniel Barrett published by O'Reilly. People who took the current exam or the beta have said that an exam-taker should know details about the commands and their options.
   
   
2. After that, you can learn from one of the books written for the current version, for the topics that the current version and the new beta version have in common. I evaluated the exam-prep books for the current version in this post.
   
   
3. I don't recall which topics are in the new objectives but not in the current objectives. You can at least read Wikipedia articles on such topics so that you have some understanding of them. You can also search on the Web for some relevant keywords and there are probably educational articles out there.
   
   
4. I also recommend having a CentOS or Ubuntu system installed on a PC, or installed in a VM, so that you can get some hands-on experience. That experiential learning can help you recall things when you are in the exam room.
   
   
   
   
   

I really enjoyed both of these books when I was starting out. Even now they are super helpful. https://www.amazon.com/gp/aw/d/0134277554/ref=dp_ob_neva_mobile

https://www.amazon.com/gp/aw/d/1491927577/ref=dp_ob_neva_mobile

If you don’t know Linux at all the 2nd book gives you a good overview of things.

Linux bible - https://www.amazon.com/Linux-Bible-Christopher-Negus/dp/1118999878/ref=sr_1_3?ie=UTF8&qid=1479572086&sr=8-3&keywords=linux


It covers everything which can be overwhelming at first but you can always go back and use it as a source.


Linux pocket guide has some cool commands also
https://www.amazon.com/Linux-Pocket-Guide-Essential-Commands/dp/1491927577/ref=sr_1_5?ie=UTF8&qid=1479572086&sr=8-5&keywords=linux

There are a couple things i'd recommend to start with. First, figure out how you learn best. For me it's physical books. I get bored and distracted with videos and pdf's get forgotten about. I'd definitely getting some decent reference material. Here are some of my favorites:

• The Python Pocket Reference
  
  
• The Bash Pocket Reference
  
  
• The Linux Pocket Reference
  
  
• The Linux Bible
  
  
• Literally anything by No Starch Press They're excellent books, fun to read and look great on a shelf.
  
  
  Kali on a raspberry pi is fine but i would not recommend starting with Kali. It's not a beginners Distro. If you can, i'd recommend picking up a cheap 2.5" hard drive for your laptop and swapping it with the Windows drive, or dual booting works too. Install a linux distro and eat your dogfood. Ubuntu and Linux Mint are great for beginners, with Mint and the cinnamon desktop being very similar to Windows 7.
  
  Centos or Fedora are also good. Fedora is based on Red Hat Enterprise linux, so it's very similar to what you'd find in an business enterprise environment. Centos takes it further though. It's literally just RHEL without branding or paid support.
  
  All of these (apart from RHEL) are free and all would be a good jumping off point. The only real difference between them all is the package manager and Desktop environment. Red Hat uses 'yum' while Debian uses 'apt'.
  
  Once you find one you like start practicing. Nearly all utilities you'll find will have a graphical user interface but the command line is always going to be more extensible/powerful. If nothing else get the Linux and Bash pocket references and test administering your own system. Try using the command line for python instead of IDLE. Learn to reboot/shutdown, install/update/upgrade/search with your package manager, try to make your system faster and document everything you do. EVERYTHING.
  
  You'll be a pro in no time.
  
  (I'm serious about the documenting. It's important. If you don't believe me check out some of the stories u/patches765 posts in r/talesfromtechsupport. It's like documentation is his superpower.)

I much appreciate your answer. I will take into account ir. I started using Linux about a year and a half ago, coming from windows. I just thinked that I could find a good alternative for Windows, and I moved to Ubuntu MATE. I was fascinated by its velocity, security and how it's packages worked. At the first time, I was dual-booting, but then I removed windows and started to just use Linux. I've been using Linux casually for a lot of time, and now I'm going serious. I want to learn bash scripting and python. I have got a fantastic Spanish Python book, (I'm learning a lot because of it), and now I'm looking for some bash and Linux books by O'Reilly and I've found this book https://www.amazon.es/gp/aw/d/0596009658/ref=mp_s_a_1_1?__mk_es_ES=%C3%85M%C3%85Z%C3%95%C3%91&qid=1520884449&sr=8-1&pi=AC_SX236_SY340_QL65&keywords=O%27Reilly+bash&dpPl=1&dpID=513EprgSOcL&ref=plSrch and this other one https://www.amazon.es/gp/aw/d/1491927577/ref=mp_s_a_1_3?__mk_es_ES=%C3%85M%C3%85Z%C3%95%C3%91&qid=1520884734&sr=8-3&pi=AC_SX236_SY340_QL65&keywords=O%27Reilly+Linux&dpPl=1&dpID=51AbKrNDvaL&ref=plSrch
Would you recommend me this books to learn?
I'm Spanish, so the prizes should be different

I second Programming in Lua as a recommendation - it is the book to learn Lua, written by the main architect behind the language itself (Roberto Ierusalimschy). The first edition is available online, but I personally recommend at least the second edition (of which I personally have a signed copy) - the fourth edition, the latest, sounds like a good pick (the description says it's been completely re-organized, based on Roberto's experience from decades of teaching Lua).

As for an environment to learn it in, I recommend Cloud9, which gives you an entire Linux integrated development environment for free (you may also want to pick up the Linux Pocket Guide, which is a good reference for learning how to get around on the command line).