A series of Linux cheatsheets covering shell, filesystem, processes, networking, systemd, and ops.
Start with Cheatsheet 01 — Shell Basics .
Linux Cheatsheet 11 — Text Processing
Cheatsheet: grep, sed, awk, jq, common pipelines.
Linux Cheatsheets
20 practical Linux cheatsheets — shell, files, processes, networking, systemd.
Linux Cheatsheet 12 — Tmux and Screen
Cheatsheet: tmux + screen + bindings + config.
Linux Cheatsheet 13 — vim / Neovim
Cheatsheet: modes, motions, search/replace, buffers, plugins.
Linux Cheatsheet 14 — git on the Command Line
Cheatsheet: common git workflows, recovery, hooks, configs.
Linux Cheatsheet 15 — Ansible Basics
Cheatsheet: ansible CLI, playbooks, roles, modules, vault.
Linux Cheatsheet 16 — Security Hardening
Cheatsheet: SSH, firewall, fail2ban, auditd, sysctl, AppArmor.
Linux Cheatsheet 17 — Performance Tuning
Cheatsheet: perf tools, sysctl, eBPF, network tuning.
Linux Cheatsheet 18 — Backups
Cheatsheet: rsync, restic, borg, ZFS/btrfs snapshots, S3.
Linux Cheatsheet 19 — Debugging
Cheatsheet: strace, ltrace, gdb, perf, core, dmesg, eBPF.
Linux Cheatsheet 20 — Production Server Setup
Cheatsheet: end-to-end server setup with security, monitoring, automation.