tee - redirect command output to file

    tee [-q] [-o logfile|-a logfile] cmd

Execute the specified command, optionally writing the commands output to the
specified logfile(s).

    -q
        Do not print output to the normal destination (console and/or log file).

    -o logfile
        Write output to this file, truncate if exists.

    -a logfile
        Write output to this file, append if exists.

    +INT, -INT
        Add/subtract INT from the -v setting for this command.