Appearance
Scroll down (SD)
ESC [ N TSD scrolls the content within the scroll region down by N lines, inserting blank lines at the top. The sequence is
ESC [ N T (default N=1). Lines scrolled off the bottom margin are lost. The counterpart of SU (scroll up).How this is testedautomated
Write 3 lines, send
Write 3 lines, send
\x1b[T (SD 1), verify row 0 is now blank (content shifted down).The same probe runs against headless backends (via Termless) and real terminal apps (via a daemon launched in each terminal). This lets us distinguish parser correctness from rendering correctness.
Analysis2026-04-06
Supported by all 12 tested terminals — universal adoption. Part of the Core TUI baseline.
Supported by 14 of 14 backends (100%)
Terminal Applications
| Terminal | Version | Support | Notes |
|---|---|---|---|
| iTerm2 | 3.6.9 | ✓ yes | |
| Ghostty | 1.3.1 | ✓ yes | |
| VS Code | ✓ yes | ||
| Warp | ✓ yes | ||
| Cursor | ✓ yes | ||
| Terminal.app | ✓ yes |