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Unlock the Power of Rocky Linux – 2026 Admin Guide Overview
The latest Rocky Linux Admin Guide (Version 2026/04/28) is a one‑stop reference that turns any Linux user into a confident system administrator. Here’s what you’ll master:
🔹 Foundations – OS concepts, UNIX history, GNU philosophy, and why Linux stays dominant in servers, super‑computers, and mobile devices.
🔹 Command‑Line Essentials – ls, grep, find, awk, tar, cpio, and Red Hat‑style package tools (DNF, repoquery).
🔹 User & Group Management – /etc/passwd, /etc/shadow, useradd, usermod, groupadd, ACLs, and sudo/chage.
🔹 File System & LVM – Partitioning, mounting, mkfs, LVM commands, /etc/fstab, and file‑attribute controls.
🔹 Process & Task Control – systemd, top, nice, kill, cron, and job scheduling.
🔹 Security & Backups – System hardening, backups with tar, cpio, compression (gzip, bzip2), and restore strategies.
🔹 Networking & Software – Interface configuration (ip, nmcli), DNS, nsswitch.conf, and RPM/DNF package management.
Whether you’re a beginner, a seasoned SysAdmin, or a DevOps engineer, this guide gives you the tools, terminology, and best practices you need to keep production systems running smoothly.
🔧 Ready to dive in? Check out the full guide at https://lnkd.in/eaHjGG6Y and start mastering Rocky Linux today!
RockyLinux LinuxAdmin SysAdmin DevOps OpenSource SystemManagement LinuxGuide TechLearning ITCareer SoftwareDevelopment 2026Tech FreeSoftware Automation Linux Admin Guide Network Security Command CLI
Rocky Linux Admin Guide (English version) A book from the Documentation Team Version : 2026/04/28 Rocky Documentation Team Copyright © 2023 The Rocky Enterprise Software Foundation
Table of contents 101. Licence 112. Learning Linux with Rocky 133. Introduction to the Linux Operating System 133.1 What is an operating system? 143.2 Generalities UNIX – GNU/Linux 143.2.1 History 173.2.2 Market share 173.2.3 Architectural design 193.2.4 The UNIX/Linux Philosophy 193.3 The GNU/Linux distributions 193.3.1 Desktop environments 223.3.2 Free / Open Source 233.4 Areas of use 233.5 Shell 233.5.1 Generalities 233.5.2 Functionalities 243.5.3 Principle 253.6 Check your Knowledge 274. Commands for Linux Users 274.1 Generalities 284.1.1 The users 294.1.2 The shell 304.2 General commands 304.2.1 apropos, whatis and man commands 334.2.2 shutdown command 334.2.3 history command 344.2.4 Auto-complete 344.3 Display and Identification 344.3.1 clear command 354.3.2 echo command 364.3.3 date command 374.3.4 id, who and whoami commands 384.4 File Tree 404.4.1 pwd command 404.4.2 cd command Table of contents – 2/301 – Copyright © 2023 The Rocky Enterprise Software Foundation
414.4.3 ls command 444.4.4 mkdir command 454.4.5 touch command 454.4.6 rmdir command 464.4.7 rm command 474.4.8 mv command 484.4.9 cp command 494.5 Visualization 494.5.1 file command 494.5.2 more command 504.5.3 less command 504.5.4 cat command 514.5.5 tac command 514.5.6 head command 524.5.7 tail command 524.5.8 sort command 554.5.9 wc command 564.6 Search 564.6.1 find command 564.6.2 -exec option of the find command 574.6.3 whereis command 574.6.4 grep command 584.6.5 Meta-characters (wildcards) 594.7 Redirects and pipes 594.7.1 Standard input and output 604.7.2 Input redirection 614.7.3 Output redirection 624.7.4 Examples of redirection 624.7.5 Pipes 634.8 Special Points 634.8.1 tee command 644.8.2 alias and unalias commands 654.8.3 Aliases and Useful Functions 674.8.4 The character ; 674.9 Check your Knowledge 695. Advanced Commands for Linux users 695.1 uniq command Table of contents – 3/301 – Copyright © 2023 The Rocky Enterprise Software Foundation
715.2 xargs commands 735.3 yum-utils package 745.3.1 repoquery command 755.3.2 yumdownloader command 755.4 psmisc packages 765.5 watch command 775.6 install command 795.7 tree command 805.8 stat command 826. VI Text Editor 826.1 vi command 846.2 Operating mode 846.2.1 The Command Mode 856.2.2 The Insert mode 856.2.3 The Ex mode 856.3 Moving the cursor 856.3.1 From a character 866.3.2 From the first character of a word 866.3.3 From any location on a line 876.4 Inserting text 876.4.1 In relation to a character 876.4.2 In relation to a line 886.4.3 In relation to the text 886.5 Characters, words and lines 886.5.1 Characters 896.5.2 Words 896.5.3 Lines 916.5.4 Cancel an action 916.5.5 Cancel cancellation 916.6 EX commands 916.6.1 File line numbers 916.6.2 Search for a string 936.6.3 Replace a string 936.6.4 Deletes the specified row 946.6.5 File operations 956.7 Other functions 956.7.1 vimtutor command 956.7.2 visualization mode Table of contents – 4/301 – Copyright © 2023 The Rocky Enterprise Software Foundation
977. User Management 977.1 General 987.2 Group management 997.2.1 groupadd command 997.2.2 Command groupmod 1007.2.3 groupdel command 1017.2.4 /etc/group file 1027.2.5 /etc/gshadow file 1037.3 User management 1037.3.1 Definition 1037.3.2 useradd command 1067.3.3 usermod command 1087.3.4 userdel command 1087.3.5 /etc/passwd file 1097.3.6 /etc/shadow file 1117.4 File owners 1117.4.1 Modification commands 1127.4.2 chgrp command 1137.5 Guest management 1137.5.1 gpasswd command 1137.5.2 id command 1147.5.3 newgrp command 1157.6 Securing 1157.6.1 passwd command 1167.6.2 chage command 1187.7 Advanced management 1187.7.1 /etc/default/useradd file 1197.7.2 /etc/login.defs file 1207.7.3 /etc/skel directory 1217.8 Identity change 1217.8.1 su command 1248. File System 1248.1 Partitioning 1268.1.1 Naming conventions for device file names 1268.1.2 Device partition number 1278.1.3 parted command 1288.1.4 cfdisk command Table of contents – 5/301 – Copyright © 2023 The Rocky Enterprise Software Foundation
301 pages
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