bash: Use regular expression to delete part of a variable value.

[hoodedvul]

Take into account the main readme for this section. README first.

Syntax is:
${name/pattern} replace first match of pattern with string.

Here we delete the "Less" part of LessDeforestation.

$ echo $ClimateChange
LessDeforestation
$ Amazon=${ClimateChange/Less}
$ echo $Amazon
Deforestation