/usr/bin/tee

Copy standard input to each FILE, and also to standard output.

Usage: tee [OPTION]... [FILE]...

Arguments:
  [file]...


Options:
  -h, --help
          Print help

  -a, --append
          append to the given FILEs, do not overwrite

  -i, --ignore-interrupts
          ignore interrupt signals (ignored on non-Unix platforms)

  -p
          set write error behavior (ignored on non-Unix platforms)

      --output-error[=<output-error>]
          set write error behavior

          Possible values:
          - warn:        produce warnings for errors writing to any output
          - warn-nopipe: produce warnings for errors that are not pipe errors (ignored on non-unix
            platforms)
          - exit:        exit on write errors to any output
          - exit-nopipe: exit on write errors to any output that are not pipe errors (equivalent to
            exit on non-unix platforms)

  -V, --version
          Print version

If a FILE is -, it refers to a file named - .