How to extract last part of string in bash?

Question

I have this variable:

A="Some variable has value abc.123"

I need to extract this value i.e abc.123. Is this possible i

Answer 1

Yes; this:

A="Some variable has value abc.123"
echo "${A##* }"

will print this:

abc.123

(The ${parameter##word} notation is explained in §3.5.3 "Shell Parameter Expansion" of the Bash Reference Manual.)