Comparison

Practical Guide for Linux vs RFC View

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Practical Guide for Linux

A comprehensive reference guide for learning UNIX and Linux commands, designed for students and professionals. It covers fundamental concepts, file system navigation, process management, and advanced utilities with updated content for 2026.

Highlights
  • 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
Features
Read full description

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.

About

RFC View

Access and read RFC documents in various formats, including text, HTML, and PDF. Features offline reading for text files, document searching, and the ability to save favorites. Stay updated with the latest documents without needing app updates.

Highlights
  • List all RFC documents
  • Search by title, ID, author, or keywords
  • Read in text, HTML, or PDF formats
  • Offline reading for text documents
  • Save favorite documents
  • View latest documents
Features
Read full description

A reader for RFC documents. Features for RFC View are: 1 - List all RFC documents 2 - Search with title, document id, authors or keywords in all RFC documents 3 - Read all documents with text, HTML or PDF formats 4 - Offline Mode: You can read all documents in text format without internet 5 - Keep your favorite documents 6 - Get latest docs: You can view all new documents without waiting for the new version of this app

Screenshots

Practical Guide for Linux4 screens
RFC View4 screens

Verdict

The call

The clearest difference is price: RFC View at Free against Practical Guide for Linux's $1.99. RFC View also leads on review sentiment (100% vs 56%). Practical Guide for Linux's advantage is rating (5.0 vs 4.0). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

RFC View is free to download; Practical Guide for Linux costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Practical Guide for Linux holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews complicate that: 56% of Practical Guide for Linux's written reviews are positive against 100% of RFC View's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Practical Guide for Linux ships an update every 10 months, RFC View every 13 months. The most recent releases landed on September 24, 2026 and October 7, 2026 respectively.

Scorecard4 real differences · 6 level
Practical Guide for Linux versus RFC View: the parameters behind the verdict, then further details
ParameterPractical Guide for LinuxRFC View
Price$1.99Free — better
Rating5.0 (2 ratings) — better4.0 (1 ratings)
Positive reviews55.6% of reviews100.0% of reviews — better
Number of ratings2 — better1
Update frequencyEvery 10 months — betterEvery 13 months
AdsNoNo
In-app purchasesNoNo
MonetizationPaidFree — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size2 MB131 MB
Age rating4+4+
DeveloperEugene Khmelevsky Inc.mantar

Customer experience

Practical Guide for Linux

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews9 reviews
Positive55.6%
Neutral0.0%
Negative44.4%

RFC View

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Practical Guide for Linux

No in-app purchases

None

RFC View

No in-app purchases

Questions

Is Practical Guide for Linux free?
Practical Guide for Linux costs $1.99, with no in-app purchases.
Is RFC View free?
RFC View is free to download, with no in-app purchases.
Which has better reviews, Practical Guide for Linux or RFC View?
Practical Guide for Linux is rated higher. Practical Guide for Linux averages 5.0 out of 5 from 2 ratings, while RFC View averages 4.0 from 1 ratings.
Do Practical Guide for Linux or RFC View have ads?
Neither Practical Guide for Linux nor RFC View shows ads.
Which is updated more often, Practical Guide for Linux or RFC View?
Practical Guide for Linux ships an update every 10 months, and RFC View every 13 months. Most recently, Practical Guide for Linux was updated on September 24, 2026 and RFC View on October 7, 2026.

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