# Practical Guide for Linux — Best Selling UNIX Guide!

> Comprehensive UNIX and Linux command reference guide for all skill levels. (iPhone/iPad app by Eugene Khmelevsky Inc..)

- Source: https://appshunter.io/ios/app/practical-guide-for-linux/id366465064 (this page in markdown: same URL + `.md`)
- Developer: [Eugene Khmelevsky Inc.](https://appshunter.io/developer/340726067)
- Category: Reference, Education
- Price: $1.99
- Rating: 5.00/5 from 2 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 2 MB
- Languages: American English
- Released: 2010-04-14
- Data updated: 2026-08-25
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/practical-guide-for-linux/id366465064/reviews.md

## What is Practical Guide for Linux?

Best Seller UNIX/Linux Reference since 2010 for both students and working adults! Now, with updated content for 2026, Air Print and iOS Light and Dark modes.

#1 Guide in Operating Systems > Unix / Linux
#1 College OS Guide

Making First Steps (passwd, su)
Logging Out, Shell (exit, Ctrl-d)
Special Characters (Ctrl-c, Ctrl-h, Ctrl-d)
Metacharacters (?, *, [])
Environment (env)
How To Change Environment Variables (.profile, .login)
Navigating The File System (absolute, relative paths)
How To Use Paths I (pwd, cd)
How To Use Paths II (cd ..)
Files and Directories - Part I (ls, ls -l)
Files and Directories - Part II(ls -al)
Files and Directories - Part III (ls -R)
Permissions - Part I (id)
Permissions - Part II (rwx-)
Permissions - Part III (how to read)
Permissions - Part IV (chmod)
Viewing Files (more, cat, head, tail)
Searching in Files - Part I (grep options)
Searching in Files - Part II (grep examples)
Renaming Files (mv)
Copying Files (cp)
Deleting Files (rm)
Links (ln)
Compare Files (diff)
Compare Directories (dircmp)
Creating Directories (mkdir)
Finding Files and Directories (find)
Create and Edit Files With vi - Part I
Create and Edit Files With vi - Part II (insert mode)
Create and Edit Files With vi - Part III (searching)
Create and Edit Files With vi - Part IV (editing)
Create and Edit Files With vi - Part V (deleting)
Create and Edit Files With vi - Part VI (saving)
Create and Edit Files With vi - Part VII (line-edit mode)
Printing Files (lp, lpr)
Archiving Files (tar)
Transferring Files Between Computers (nslookup, ping)
Telnet
FTP - Part I (connecting)
FTP - Part II (transferring files)
More UNIX Commands (uname, arch)
Date and Time (date, cal)
Find Out About Other Users - Part I (who)
Find Out About Other Users - Part II (finger)
History
Disk Space (df, du, gzip, gunzip)
Memory (free, uptime)
Processes (Jobs) - Part I (ps)
Processes (Jobs) - Part II (ps -ef, kill, fuser)
Processes (Jobs) - Part III (at)
Electronic Mail - Part I (elm)
Electronic Mail - Part II (command mode)
Advanced UNIX - Redirection Part I (>, >>)
Advanced UNIX - Redirection Part II (|)
Practical sed and awk - Part I (sed)
Practical sed and awk - Part II (sed example)
Practical sed and awk - Part III (sed example)
Practical sed and awk - Part IV (awk)
Practical sed and awk - Part V (awk example)

The best way to learn UNIX and Linux for all.
Designed for all devices, full support for Air Print.

## Key features

- Covers fundamental UNIX/Linux commands
- File system navigation and management
- Process and job control
- Text manipulation with sed and awk
- File archiving and transfer
- Updated content for 2026
- Supports Air Print and Light/Dark modes

## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/practical-guide-for-linux/id366465064/reviews.md

### 5/5 — Cool collections

*2018-11-14*

I like it, a nice command collection with color formtting.

### 5/5 — Keeps it simple, readable, and useful

*2016-03-19*

I have just started, but I had to stop to write a review.  The author starts off with noting how heady and overwhelming Linux books, etc., can be and then rejects the premise.  My experience - though I know nothing much about it I love it, if you want to kill a computing conversation dead - say "Linux".   All eyes glaze over.

He starts from the base, the very beginning, and builds up in small increments from there - in a logical order.  You'll end up with a better understanding of computing in general.

Linux is awesome, but why?  Read the app.  Like many things but more so, Linux can be as simple or as complex as you like or need.  

I've made sure to keep a Linux PC handy - for years.  I have done simple to complex things with the command line given step-by-step instruction, with no clue as to what I was doing.  I haven't actually "learned" at all.  I don't know which parts of the stuff I'm typing in are commands or what they're doing.   Anything I think to do I have to look up, even if it's simple. I'm looking forward to learning and using Linux on my own level - and going from there.

Thanks for a great, accessible, highly readable, info app.

### 5/5 — Spot on!

*2014-06-21*

Nice app that achieves its simple goal elegantly. Does what it states! Thanks

### 5/5 — Practical, clear and in-depth!

*2013-09-11*

If you need a practical Unix/Linux reference with examples and clear explanations, then this is the one to get!

I completely agree that this is truly one app to have for all your Unix/Linux needs.

### 5/5 — Perfect tool

*2011-08-15, version 2011.1.1*

L'outil parfait pour démarrer avec UNIX. Cette application est devenu mon livre de chevet pour mes études.

### 2/5 — Horrible interface

*2010-09-06*

Nice initiative, some useful content but HORRIBLE interface, very poor quality.

### 1/5 — Nul

*2010-06-14, version 0*

Interface pauvre qui n utilise pas les fonctionnalités de l'ipad.
La navigation se résume par 2 boutons previous et next ..
Tout est dit dans le titre!

### 1/5 — Frechheit

*2010-06-05*

Ich kann nur warnen und sagen Finger weg, spart Euch das Geld. Informationen im sog. eBook sind mehr als dürftig und die Bedienung ist eine Zumutung für die Möglichkeiten, die das iPad bietet. Wenn man keinen Stern vergeben könnte, wäre das hier angebracht.

### 2/5 — Poor navigation

*2010-05-07*

The information in the book is solid. However, navigating the book is awful. There is no way to advance to a specific page, no bookmarking, and the book starts at page one at every start up. When near every other reader provides these functions, for this not to is pretty poor.

## Frequently asked questions about Practical Guide for Linux

### What is Practical UNIX Linux?

Practical UNIX Linux is a best-selling reference guide for learning UNIX and Linux commands. It has been updated for 2026 and covers a wide range of topics from basic navigation to advanced utilities.

### Who is Practical UNIX Linux for?

This guide is designed for both students and working adults who want to learn or improve their understanding of UNIX and Linux operating systems.

### What kind of content does Practical UNIX Linux cover?

It covers essential commands for making first steps, logging out, special characters, file system navigation, file manipulation, permissions, viewing and searching files, process management, electronic mail, and advanced utilities like sed and awk.

### Is Practical UNIX Linux updated regularly?

Yes, the app has updated content for 2026 and was last updated on September 5, 2025, indicating a commitment to keeping the information current.

### What devices does Practical UNIX Linux support?

Practical UNIX Linux is available for Mac, iPhone, iPad, and iPod, offering full support for Air Print and iOS Light and Dark modes.

### What is the price of Practical UNIX Linux?

Practical UNIX Linux is a paid app, priced at $1.99.

### Does Practical UNIX Linux have ads?

No, Practical UNIX Linux does not contain advertisements.

### What is the user rating for Practical UNIX Linux?

Practical UNIX Linux has an excellent rating of 5.0 stars from 2 ratings, indicating high user satisfaction.

## Version history (last 5 releases)

### 16 — 2025-09-05

Performance and usability improvements.

### 14 — 2021-02-09

Performance improvements. Updated content.

### 13 — 2021-01-02

Updated interface, new transitions, Quiz mode has been enhanced.

### 12 — 2020-10-04

New Quiz mode!

### 11 — 2020-09-13

Updated content, full support of iOS Light and Dark modes.

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| [Tutorial for HTML5](https://appshunter.io/ios/app/tutorial-for-html5/id946090657) | 5.0 (3) | $0.99 | Reference |

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All apps by Eugene Khmelevsky Inc.: https://appshunter.io/developer/340726067

## Related topics

[linux arch](https://appshunter.io/ios/topics/linux-arch) · [linux practice](https://appshunter.io/ios/topics/linux-practice)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*