TEE(1)                      General Commands Manual                     TEE(1)

NAME
     tee - duplicate standard input

SYNOPSIS
     tee [-ai] [file ...]

DESCRIPTION
     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.

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

EXAMPLES
     Send the echoed message both to stdout and to the greetings.txt file:

           $ echo "Hello" | tee greetings.txt
           Hello

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

macOS 26.6                       June 23, 2020                      macOS 26.6