Linux Reference Free is a handy reference app to help you learn Linux on the go. Universal application, runs on both mobile device & tablet.
(Pro version is available here : https://play.google com/store/apps/details?id=com.poash.linuxreferencepro)
Features:
* View content offline
* No Ads
* Test your knowledge with quiz (more question will be added soon)
* Easily zoom in or out to view images * Change the font size to read easily, either on mobile phone or tablet
* No permissions required
* Internet connection not required
Quiz Features
★Test your knowledge
★Questions test your understanding of the commands
★Questions can be flagged for later review while the quiz is in progress
★Correct answer, along with the explanation is displayed for each question once the quiz is over. User answers are also displayed
★Questions that are left unanswered do not reveal correct answers
Feel free to give us your feedback/suggestions at feedback@poash.com.
If you face any problems, let us know. Please avoid leaving negative feedback in the comments.
NOTE: android 4.0 and below versions do not support features of changing text. Consequently, the text changing icons won't show up on these versions.