Create a fake filesystem full of text files with random names.
Note that if all you want to do is fill up disk (you don't actually need the payload to be a filesystem) you can just use one of the following two commands depending on whether you use Linux or Mac:
fallocate -l 50G big_file # On Linux use fallocate(1)
mkfile 50G big_file # On Mac OS use mkfile(1)
Note that 50G above is the desired size of the file. If you want a smaller filesize you can also specify K or M
Run it like this:
bin/lorem-ipsum-filesystem
This should produce a folder called loremfs in the current directory. The generated filesystem is in the loremfs folder.
You can run the following commands to explore the generated filesystem and make sure it fits your needs.
du -sh loremfs # Shows the storage footprint of the directory,
# something like "268M"
tree loremfs | grep -E '^\d+' # Shows total count of files and folders,
# like "1309 directories, 267 files"
If you need a larger filesystem than was generated, you can just run the script again and it will
continue to add on to the already-created filesystem in the ./lormefs folder.
Run the script over and over (using a loop if necessary) until you have as large a filesystem as you desire, or until your disk is full! All generated files will be deposited inside the same ./loremfs folder so it is easy to clean up the generated filesystem once you are done with it.
You will need to install the Text::Lorem Perl module.