40 Arch Linux Keyboard Shortcuts

Arch Linux gives you direct, unmediated control of your machine. That philosophy extends to the keyboard: from the Linux kernel’s SysRq interface all the way to Readline’s Emacs-derived editing commands, knowing these shortcuts separates a productive Arch user from someone who reboots with the power button and loses unsaved work.

This reference is organized from lowest level (kernel) to highest level (shell input), so you understand why each layer exists and when to use it.

SysRq (kernel-level) shortcuts

The Magic SysRq key is a direct line to the Linux kernel. These shortcuts bypass userspace entirely they work even when your desktop environment has frozen, your shell is unresponsive, or a runaway process has consumed all resources. On most keyboards, Sys Rq shares a key with Print Screen.

⚠ Caution
SysRq must be enabled on your system. Check with cat /proc/sys/kernel/sysrq. A value of 1 means all SysRq functions are enabled. To enable permanently, add kernel.sysrq=1 to /etc/sysctl.d/99-sysrq.conf.

The REISUB safe reboot sequence

When your system freezes completely, don’t hold the power button that risks filesystem corruption. Instead, use the REISUB sequence: six SysRq commands pressed in order, with a 1–2 second pause between each step.

⚠ Important
Wait for each step to complete before pressing the next key. After pressing S (Sync), wait until you see “Emergency Sync” in your kernel log or allow 2–3 seconds. Rushing through corrupts the purpose of syncing.

Virtual console shortcuts

Linux provides up to 6 virtual consoles (TTYs) accessible from any state, including when X or Wayland has crashed. If you’re running a desktop environment, it typically occupies Alt+F7.

Terminal control shortcuts

These shortcuts send Unix signals to processes running in your terminal. Understanding the difference between them prevents accidentally losing work.

Cursor navigation (Readline)

Readline is the input library used by bash, zsh, and most interactive command-line tools. Its shortcuts are inherited from GNU Emacs key bindings learning them makes you faster in both your shell and any Emacs-style editor.

Cut & paste the Readline kill ring

Readline maintains a kill ring a circular buffer of everything you’ve cut. Ctrl+Y pastes the most recent item; Alt+Y cycles backward through earlier cuts. This is far more powerful than a single clipboard.

History & search Shortcuts

Readline’s reverse incremental search (Ctrl+R) is one of the most productive shortcuts in any shell. Start typing any part of a previous command and it finds the most recent match instantly.

Auto-completion Shortcuts

Tab completion in bash is powered by Readline. Tab alone completes unambiguous names; when ambiguous, a second Tab or Alt+? lists all options. Alt+* inserts every possible completion at once useful for bulk operations.

Full quick-reference table

All shortcuts in one place, with category labels for scanning.

Sources: Arch Wiki – Keyboard shortcuts · GNU Readline docs · Linux kernel SysRq docs

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