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TERM env variable
$TERM (environment variable)The
TERM environment variable identifies the terminal type for terminfo/termcap lookup. It is set by the terminal emulator at startup and is the oldest and most widely supported mechanism for terminal self-identification. Applications use TERM to load capability databases and decide which escape sequences are safe to emit.
Common values include xterm-256color, screen-256color, tmux-256color, xterm-kitty, wezterm, foot, and ghostty. Some terminals expose a custom value to enable terminfo entries that describe their extensions; others choose a generic value like xterm-256color to maximize compatibility with software that only ships with a small terminfo database.How this is testedmanual
Manual verification required — no automated probe available.
Manual verification required — no automated probe available.
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.
Supported by 0 of 14 backends (0%)
Terminal Applications
| Terminal | Version | Support | Notes |
|---|---|---|---|
| iTerm2 | 3.6.9 | ? unknown | |
| Ghostty | 1.3.1 | ? unknown | |
| Terminal.app | 2.15 | ? unknown | |
| Kitty | 0.46.2 | ? unknown | |
| VS Code | 1.113.0 | ? unknown | |
| Warp | 0.2026.03.18.08.24.03 | ? unknown | |
| Cursor | 2.6.21 | ? unknown |