Variables expand in quotes in common - but then ~ will not expand to $HOME in bash.

[GoogleCodeExporter]

What steps will reproduce the problem?
1. In your "Custom Installation" Tutorial you recommend to prefix the path 
variables with a ~ . 

What is the expected output? What do you see instead?

This should then expand to ${HOME} in the scripts. However, tilde-expansion 
does not work in your scripts, since you always expand the variables inside 
double-quotes. This will give file-not-found errors. Combined with the previous 
bug I filed (on using exit instead of return) this bug will lead to a unusable 
shell environment when following your tutorial.

Original issue reported on code.google.com by [email protected] on 14 Apr 2015 at 1:16