# For cron/crontab
*/5 * * * * /path/myscript.sh > /dev/null 2>&1

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# Redirect ALL output/error automatically to a file 
# AND print to console too
LOG_OUTPUT=output_error.log

exec 1> >(tee -i ${LOG_OUTPUT}) 2>&1

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# *ALL* redirected to the log files: NO console output at all
LOG_OUTPUT=output.log

exec 1>>${LOG_OUTPUT} 2>&1

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# All redirected to 2 different log files
LOG_OUTPUT=etup_output.log
LOG_ERROR=setup_error.log

exec 3>&1 1>>${LOG_OUTPUT}
exec 2>>${LOG_ERROR}

# use 'P "my message"' instead of echo
P () {
# Print on console AND file
echo -e "\n$1" | tee /dev/fd/3

# Print ONLY on console
#echo -e "\n$1" 1>&3
}

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# ALL stdout and stderr to $LOG_OUTPUT
# Also stderr to $LOG_ERROR (for extra checks)
# P function to print to the console AND logged into $LOG_OUTPUT
LOG_OUTPUT=output.log
LOG_ERROR=error.log

exec 3>&1 1>>${LOG_OUTPUT}
exec 2> >(tee -i ${LOG_ERROR}) >> ${LOG_OUTPUT}

# use 'P "my message"' instead of echo
P () {
# Print on console AND file
echo -e "$1" | tee /dev/fd/3

# Print ONLY on console
#echo -e "\n$1" 1>&3
}

# use 'P "my message"' instead of echo to print in BLUE
P () {
BLUE='\033[1;34m'
NC='\033[0m' # No Color
echo -e "\n${BLUE}${1}${NC}" | tee /dev/fd/3
}