>> First commit

> make project outline
> tests are definitely wrong
> may need to rewrite arg parsing

README.md

@@ -0,0 +1,30 @@
+# Owl
+
+*The moon is bright. The owls are ready for the hunt.*
+
+Owl is a command line tool for removing unwanted characters from file names.
+Say you want to backup some of your files on to a memory stick. Most likely 
+that memory stick uses `FAT32` or `exFAT` as its file system, as this is the 
+most compatible with the most operating systems. But if any of your files 
+have special characters like `:` or `?` in their names, this won't work (see 
+<https://learn.microsoft.com/en-gb/windows/win32/fileio/exfat-specification> 
+for more details).
+
+Alternatively, say you have a file that needs to be on an older computer 
+that will not render some characters (like multi-character emoji) 
+correctly<sup>1</sup>.
+
+And what if you have either of these problems with potentially many files in 
+a directory? Renaming every file would be tedious, and even the best bulk 
+renaming tool will struggle to deal with all the possible invalid 
+characters, at least if you don't want to manually write a very complex 
+[regular expression](https://en.wikipedia.org/wiki/Regular_expression) every 
+time you encounter this problem.
+
+Owl will hunt down any files with these issues and rename them as 
+appropriate - see `man.md` for usage.
+
+
+---
+
+1. Or you just don't like having emoji in a file name.