Sometimes it is necessary to process one or more of the same changes to a number of filenames at once. This is a tidious task for a human, but, a perfect task for a computer.
Here are some examples of Unix oneliners, used on a FreeBSD operating system.
In this example, all filenames will have their spaces [...]

In this example, we want to add a number of free fonts to our desktop computer with the Ubuntu operating system.
There are numerous sites, that offer free fonts. We can recommend freefonts.dk, which offers thousands of TrueType fonts (TTF), that can be browsed, downloaded and used directly and free of charge.
We browse and download the [...]