Designating or of a file whose contents can be read or viewed, but not altered.
Webster's New World
Unalterable, capable of being read but not written. Especially common in computer terms such as read-only memory and read-only access to files or directories (in in file system permissions or programs).
Read-only Sentence Examples
Meanwhile, with the exception of the Provinciales (of which there are numerous editions, no one much to be preferred to any other, for the text is undisputed and the book itself contains almost all the exegesis of its own contents necessary), Pascal can be read only at a disadvantage.
You can use the attrib command to remove the read-only attribute from the destination directory.
The " it's only read-only data " argument doesn't stand up, either.
We are underbred and low-lived and illiterate; and in this respect I confess I do not make any very broad distinction between the illiterateness of my townsman who cannot read at all and the illiterateness of him who has learned to read only what is for children and feeble intellects.
He had read only a few lines when he turned pale and his eyes opened wide with fear and joy.