TEE(1) — User’s Manual — Commands
NAME
tee − copy standard output to many files
SYNOPSIS
tee [ −i ] [ −a ] [ file ] ...
DESCRIPTION
Tee transcribes the standard input to the standard output and makes copies in the files.
OPTIONS
−i Ignore interrupts.
−a Append the output to the files rather than overwriting them.
Sun System Release 1.0 — 2 June 1983