How to force Eclipse not to format portions of code?

Question

I often use Ctrl+Shift+F in Eclipse to format Java source code.

However in some situations I would like that some portions of code were not formatted, e.g. some long CLI commands inside comments.

So, I would like to tell Eclipse: "whenever I hit Ctrl+Shift+F, please format all lines of code except for x-y-z".

Is it possible?

I don't think eclipse has "invert selection". Basically you can do it the other way round, just select lines that you need to format then Ctrl+Shift+F — Kenneth Ong
Please elaborate on your question properly and mention your triggering point to get the answer. — Lova Chittumuri
Does this answer your question? How to turn off the Eclipse code formatter for certain sections of Java code? — Ale Zalazar