Manual Pages  — TEE

tee – duplicate standard input

SYNOPSIS DESCRIPTION EXIT STATUS STANDARDS

tee [-ai] [file ...]

The tee utility copies standard input to standard output, making a copy in zero or more files. The output is unbuffered.

The following options are available:

-a
	Append the output to the files rather than overwriting them.
-i
	Ignore the SIGINT signal.

The following operands are available:

file	A pathname of an output file.

The tee utility takes the default action for all signals, except in the event of the -i option.

The utility exits 0 on success, and >0 if an error occurs.

The tee utility is expected to be IEEE Std 1003.2 ("POSIX.2") compatible.