open the terminal application just touch it with your finger...
now you're in terminal with a command prompt, where you can enter lots of commands.
As long as you don't enter any commands under root(don't worry you have to know how to get root access to get it) feel free to try some commands. the" lshal | grep percen" will display the percentage of battery left. that's LshaL not ishal or ishai.
then there's lshal |grep battery which will display lots of info about the battery including the percentage left.

I usually keep a terminal window always open and use the following command: "lshal | grep percen;date" the ";" allows you to concatenate two commands. It will run them one after the other, so you get a percentage of the batter and the date/time. Keeping the terminal open I run that command throughout the day, and it gives me a battery usage profile.

Would anyone with more linux experience suggest a way to from the command line just enter that command "lshal | grep percen;date" plus maybe a way to enter a sentence explaining what the usage was, and having the output of everything logged to a file?
is there a command that just regurgitates text?