Falsehoods programmers believe: https://encrypted.google.com/search?hl=en&q=%22things%20prog...
http://www.metafilter.com/117073/Falsehoods-Programmers-Beli...
By way of lists, a pretty comprehensive one: http://spaceninja.com/2015/12/08/falsehoods-programmers-beli...
More in another comment: https://news.ycombinator.com/item?id=12675830
* That there's never a \0 in a pathname
wchar names on MSWin UNICODE and WinCE. Symbian uses UTF16.
* That paths are seperated by /
Yes, Windows NT accepts /, VMS, VOS, RISC OS also, but MacOS classic had :, and VMS uses []. And there are still \ pathseps only, like DOS, OS/2, SYMBIAN, Novell NETWARE, AmigaOS4. Native Acorn RISC OS uses . as pathsep and : as in DOS.
Just the easiest ones.
But what makes matters more complicated, is that on AmigaOS "/" is equivalent to "." on Unix systems, and "//" equivalent to "..", and "."/".." are legal filenames. AmigaOS doesn't have an equivalent to "/" in Unix (everything is rooted in a volume, and there are many volumes), but ":" can be used to prefix a path to make it relative to the root of the current volume...
It breaks all kinds of assumptions people make..