So this line only redirects all script output to a file as well as ensure that that output makes it onto your screen at the same time.

It is unstructured only in the way you allow any running command within your script to dump their output.

I run most commands inside my scripts with `> /dev/null 2>&1` and then rely on exit codes to wrap structured information to be echoed out with this function:

echo_l(){echo;echo '--------';echo "${1}";echo '--------';echo}

Or functions such as this to populate a log:

log_cat(){echo "${1}" >> ${__LOG} }

But the tee named pipe is the winner.

PS. The __DOC_LOCAL and __DIR variables start with these magic variables below. These variables are a life saver and allow easy directory and file manipulation, they kind of setup a top-level context:

# Set magic variables for current file & dir

__DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

__FILE="${__DIR}/$(basename "${BASH_SOURCE[0]}")"

__SCRIPT="$(basename ${__FILE})"

__BASE="$(basename ${__FILE} .sh)"

__ROOT="$(cd "$(dirname "${__DIR}")" && pwd)"