A series of Linux cheatsheets covering shell, filesystem, processes, networking, systemd, and ops.
Start with Cheatsheet 01 — Shell Basics .
Linux Cheatsheet 01 — Shell Basics
Cheatsheet: bash, redirects, pipes, jobs, history, aliases.
Linux Cheatsheets
20 practical Linux cheatsheets — shell, files, processes, networking, systemd.
Linux Cheatsheet 02 — Files and Permissions
Cheatsheet: chmod, chown, umask, ACL, attributes, find.
Linux Cheatsheet 03 — Process Management
Cheatsheet: ps, top, htop, kill, signals, jobs, monitoring.
Linux Cheatsheet 04 — Networking
Cheatsheet: ip command, ss, nftables/iptables, DNS, routes.
Linux Cheatsheet 05 — systemd
Cheatsheet: systemctl, .service files, timers, journalctl, drop-ins.
Linux Cheatsheet 06 — Disk and Filesystems
Cheatsheet: lsblk, mount, fstab, LVM, btrfs/zfs snapshots.
Linux Cheatsheet 07 — Users and Groups
Cheatsheet: user/group management, sudo, ssh keys, password policy.
Linux Cheatsheet 08 — Logs and journald
Cheatsheet: journalctl, rsyslog, logrotate, dmesg, kernel logs.
Linux Cheatsheet 09 — Cron and Scheduling
Cheatsheet: cron syntax, systemd timers, at, anacron.
Linux Cheatsheet 10 — Package Management
Cheatsheet: apt, dnf, pacman, apk, brew, snap/flatpak.