RIS — Full Reset

Sequence	ESC c
Bytes	0x1B 0x63
Mnemonic	RIS
Otty support	✓

Description

Resets the terminal to its power-on state:

• Switches to the main screen, clears it, clears scrollback.
• Resets cursor to home, default SGR, default character sets.
• Restores default tab stops (every 8 columns).
• Disables every DEC private mode set via DECSET.
• Clears any saved cursor state.

Use sparingly — RIS is a heavy hammer. Most programs need DECSTR (soft reset) instead, which preserves scrollback.

Example

printf '\ec'        # equivalent to `reset` on Unix, but more nuclear

Related

• DECSTR — soft reset (preferred for most cases).