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Cursor next line (CNL)

Category: cursor · Baseline: modern · Tags: ECMA-48 Standard · Specification ↗

ESC [ N E
CNL moves the cursor to the beginning of the line N rows down. The sequence is ESC [ N E (default N=1). Unlike CUD, which preserves the column, CNL always sets the column to 1.
How this is testedautomated
Write "ABC" then send \x1b[2E (CNL 2), verify cursor is at row 2, column 0.

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 Modern TUI baseline.

Supported by 13 of 14 backends (93%)

Terminal Applications

TerminalVersionSupportNotes
iTerm23.6.9✓ yes
Ghostty1.3.1✓ yes
VS Code✓ yes
Warp✓ yes
Cursor✓ yes
Terminal.app✓ yes

Headless Backends

Parser correctness only — a means the parser accepts the sequence.

BackendVersionSupportNotes
Alacritty0.26.0✓ yes
Kitty0.40.0✓ yes
vt100.js0.2.1✓ yes
vterm0.2.0✓ yes
WezTerm0.1.0-fork.5✓ yes
xterm.js5.5.0✓ yes