record battery information daily

setup_record.sh

# create script
touch power_history.sh

sudo echo '
# create file if not exist
touch ~/power_history.txt

# create separating header
echo Power Information Recorded >> ~/power_history.txt

# record unix time in seconds
echo $(date +%s) >> ~/power_history.txt

# record date for easier reference
echo $(date) >> ~/power_history.txt

# record power info
echo "`system_profiler SPPowerDataType`" >> ~/power_history.txt
' >> ~/power_history.sh

# give permission to the script to read and execute
sudo chmod 500 ./power_history.sh

# run the script every day
touch ~/.crontab
echo 0 14 \* \* \* /Users/$(id -un)/power_history.sh >> ~/.crontab
sudo crontab -u $(id -un) ~/.crontab  # this may only work on Terminal not iTerm2 (if you know what this is)