Executive Summary

General Notes

use bash range syntax for create multiple files at a time like:

touch example-{0..5}.txt

will create 5 files all at once.

bash is default shell for most linux environments.
a shell is the user interface so you can speak to the computer through commands.
- scripts are just a file that executes a series of these commands back2back inside of a single or multiple files.
.sh is the extension for bash scripts
lead all scripts with #!/bin/bash where bin/bash is the directory location of the bash executable / binary.
make sure you script is executable with chmod +x script.sh which gives the file the x flag to the operating systems which means you can execute it on the system.
variables are like in programming but usually
- all caps for the name
- and no spaces before/after the equals sign.
can access the inner value with $VARIABLE_NAME aka the dollar sign ($)
Control statements look like this

if [ $1 -gt 100]
then
    echo "that's a big number"
else
    echo "meh, that's a small number"
fi