Specifically,
you are looking to create a Shell script. If you are using the default AIX shell, you will be writing a Korn Shell script. This is the closest thing to the DOS command interpreter language (Batch Files) that you will find. If you know and like batch files, the world of shell scripting will be a big eye opener. I know it was to me way back in '92 when I first started playing with them.
There are minor differences in syntax between the different shells. Make sure you know which one you are using before you purchase a book. One way to find out what shell you are using, process a 'lsuser' command on yourself. For the field named "shell=" you will see what the shell is. Common shells are as follows:
ksh = Korn shell
csh = C shell
bsh = Bourne shell
bash = Bourne Again shell
If you just see sh, you are using the system default. In all likelihood, it is Korn shell.
Once you know what shell you are using, go to your local bookstore and flip through some books.
Test out your scripts for a few days. Once you know they work pretty well, set up some cron jobs to run them. Laziness can be a virtue if you can prevent yourself from having to type commands in by rote each morning. Go learn something new.
Good Luck