This unicode character belongs to the Basic Latin Unicode Block.

Decimal value15
CodepointU+f
UTF-8 bytes (dec)15
UTF-8 bytes (hex)f
HTML entity
VIM DigraphSI
CategoryCc
Class0

Aliases

SHIFT IN (control)

LOCKING-SHIFT ZERO (control)

SI (abbreviation)

Control-O has been the discard output key. Output is not sent to the terminal, but discarded, until another Control-O is typed.