Linux

Linux

A practical library for Linux on the command line, organized as three parts under one book:

Linux
├── Commands          → topics (files, processes, networking, …) → individual commands
├── Editors           → vi, Neovim, tmux, Herdr, … → chapter pages
└── Scripting
    └── Bash          → shells, scripting, variables, control, workbook

This landing page restores the Commands orientation (scope, page template, parts map) from the former standalone Linux-Commands book, and points you into Editors and Bash as well.

Commands — scope

A practical, Ubuntu-first encyclopedia of general Linux CLI and server-side commands for administration, scripting, and troubleshooting on headless and SSH-managed systems.

Commands stays on the terminal and the OS. It does not cover desktop/GUI applications, graphical package stores, or printer/desktop workflows.

Each Commands chapter covers one command (or a tight family): syntax, important options, realistic examples, output notes, safety tips where it matters, and related tools.

In scope	Out of scope
Core userland (ls, find, pipes, …)	Desktop apps and GUI installers
Networking, SSH, firewalls, capture	Display servers (X11/Wayland), window managers
systemd, journals, packages (apt/dnf)	Flatpak / GUI app stores
Storage, LVM, LUKS, disk health	CUPS client printing queues
Processes, monitoring, scheduling	Desktop session “app” management
Terminal multiplexers (tmux, …)	Browser-based or GUI-only tools
SELinux/capabilities as server concerns	End-user desktop customization

Editors and Bash live in the other parts of this book (they used to be sibling books in the monorepo).

Related books

Book	Overlap
Networking	Deeper TCP/IP, routing, and lab topologies beyond host CLI
VCS	Git workflows used on the servers you administer
NixOS	Declarative hosts after you know classic Linux ops
Go / C	Systems programming that assumes this CLI fluency

How to use

1. Expand Commands → open a topic → open a command page.
   
2. Each Commands topic starts with an Intro page: overview, command table, and suggested starting points — then one page per command.
   
3. Expand Editors → pick an editor or workspace tool (vi, Neovim, tmux, Herdr, …).
   
4. Expand Scripting → Bash for shell programming and automation beyond one-liners.
   
5. Search for a command or editor name when you already know what you need.
   
6. Prefer worked examples over option dumps — copy, adapt, verify on a server or VM.

Commands page template

Most command pages follow this shape:

1. Overview
   
2. Syntax
   
3. Common options
   
4. Safety (when destructive or privileged)
   
5. Key use cases (Core pages)
   
6. Examples with named explanations
   
7. Understanding output (when useful)
   
8. Notes & pitfalls
   
9. Related commands
   
10. Further reading (optional)

Short utilities may use a lighter form. See content/_planning/command-page-template.md for author depth tiers (Core / Standard / Light).

Commands — parts at a glance

Section	Focus
Help and docs	man, info, help, apropos, whatis
Files and paths	Navigation, copy/move, permissions, ACLs, attributes, search
Archives and compression	tar, gzip, xz, zstd, zip, zcat/zgrep
System information	Host identity, memory, sessions, hardware summaries
Processes and jobs	ps, top, signals, job control, priority
System monitoring	iostat, vmstat, sar, strace, ltrace, perf
Users and groups	Accounts, passwords, aging, su/sudo
Networking	ip, ss, DNS, SSH, transfer, firewalls, capture, ethtool
Scheduling	cron, crontab, at, anacron
Logging	logger, logrotate (see also journalctl)
Hardware	lshw, lspci, dmidecode, hdparm
Storage and filesystems	lsblk, LVM, LUKS, parted, SMART, grow/tune ext*
Terminals and multiplexers	tmux, screen, and related terminal tools
Text and pipes	grep, sed, awk, jq, pv, sort/uniq pipelines
Packages	apt/dpkg, dnf/rpm, yum, server-oriented snap
Services and runtime	systemctl, journalctl, timers, modules, podman
Shell commands	echo/printf, history, type, export, time, directory stack
Security	SELinux mode/labels, file capabilities (RHEL-family focused)
Appendices	Cheatsheets and longer extras

Editors (this book)

Terminal-native editing — classic (vi/vim/nano), modern modal (Neovim, LazyVim, Helix, Kakoune), GUI-speed Zed, plus workspace tools (tmux, Herdr). Start under Editors → Intro for paths (sysadmin emergency, Vim family, AI agents).

Scripting → Bash (this book)

Shell programming beyond one-liners: shells vs terminals, first scripts, variables, control flow, functions, and a workbook. Use Commands for individual utilities; use Bash when you are writing scripts.

Conventions

• Examples assume a modern GNU/Linux server userland (Ubuntu 22.04/24.04 Server compatible unless noted).
  
• Prefer ip / ss / systemctl over legacy ifconfig / netstat / SysV-only workflows.
  
• Ubuntu-first package names where they matter; note Fedora/RHEL variants when tools differ.
  
• Worked examples over option dumps.
  
• Safety notes on destructive or privileged operations.

Formats

HTML, PDF, and EPUB when built via the monorepo portal.