OSC 0 / 2 — Set window/icon title

Byte forms

Every common string-literal form so you can paste-and-search either direction.

Description

OSC (Operating System Command) sequences start with `ESC ]` and end with either BEL (`\x07`, the de-facto xterm terminator) or ST (`ESC \`, `\x1b\\`, the standards-correct terminator). `OSC 0` sets both window and icon title, `OSC 1` only icon, `OSC 2` only window. Used by shells (PROMPT_COMMAND), tmux, screen, and tab-renaming tools. The terminator must always be present — a missing BEL/ST will hang the OSC parser until the next byte that happens to be one.

Spec citation: xterm-ctlseqs (OSC 0/1/2)

Examples

printf '\033]0;Hello window\007'

import sys; sys.stdout.write('\x1b]0;Hello window\x07')

fmt.Print("\x1b]0;Hello window\x07")

process.stdout.write('\x1b]0;Hello window\x07')

printf("\x1b]0;Hello window\x07");

Terminal support

xterm

yes

Linux console (fbcon)

no

macOS Terminal.app

yes

iTerm2

yes

Windows Terminal

yes

cmd.exe / ConPTY

yes

kitty

yes

alacritty

yes

WezTerm

yes

Ghostty

yes

GNOME Terminal

yes

Konsole

yes

tmux

no

GNU screen

no

Related sequences

• OSC 8 — Inline hyperlink
• OSC 7 — Current working directory hint
• OSC 52 — System clipboard read/write
• OSC 110 / 111 / 112 — Reset default fg / bg / cursor colour

In the family cookbook

↗OSC cookbook · 1. The envelope — `\x1b]` … `\x07` or `\x1b\\`