DEBUG_LOG="${0##*/}.log"

# copy stdout to log always and echo to console
exec >  >(tee -a ${DEBUG_LOG})

# copy stderr to log only, unless debugging is enabled
[ $DEBUG_TEST = "true" ]
  && exec 2> >(tee -a ${DEBUG_LOG} >&2)
  || exec 2>> ${DEBUG_LOG}

# Expand escaped characters, wrap at 70 chars on spaces,
# and indent wrapped lines
msg_log() {
  echo -e "$(date +%T) ${0##*/}: $1"
    | fold -w70 -s | sed '2~1s/^/  /' >&2;
}
msg_con() {
  if [ "${DEBUG_TEST}" = "true" ]; then
    msg_log "$1"
  else
    echo -e "$1" | fold -w70 -s | sed '2~1s/^/  /';
  fi
}

function startLogging {
    exec > >(gawk -v pid=$$ '{ print strftime("%F-%T"),pid,$0; fflush(); }' | tee -a $logfile)
    [ ! -z "$DEBUG" ] && exec 2>&1 || exec 2> >(gawk -v pid=$$ '{ print strftime("%F-%T"),pid,$0; fflush(); }' >>$logfile)
    echo "=== Log started for $$ at $(date +%F-%T) ==="
}

exec 1>>${DEBUG_LOG}
exec 2>>${DEBUG_LOG}

./my_script 1>>${DEBUG_LOG} 2>>${DEBUG_LOG}

echo -n $(date) >> $DEBUG_LOG
command 2>&1 | tee -a $DEBUG_LOG

echo -n $(date) >> $DEBUG_LOG
command >> $DEBUG_LOG 2>&1