Check for changes in website?

[babadoctor]

Lets say I want to compare a website with a previous version of it that I have using wget

 

e.g

if

wget google.com

sleep 3600

wget google.com

then compare code goes here

delete code for oldest file

and then compare the hashes (or how to detect changes between two files) for both files and see if anything has changed, if it has then notify me

how exactly can i do this with bash?

 

[Dat Guy]

You could just use Firefox's Update Scanner add-on. If you really want to use bash (why not POSIX sh?) for this, check man diff.