In this web content, the author discusses their confusion with type-less shells like Bourne Shell and Csh. They highlight the limited data structures and confusion between word lists and arrays in Csh. The author also mentions the use of globals or globs in Unix to expand file listings using wildcards. They give an example of using the splat (*) wildcard to ‘cat’ files that end in ‘.txt’. The author then explains how to coerce a word list into an array using parentheses in Csh. They note that Csh is unique in its use of parentheses and suggest that it is a special language. It is important to note that there is no controversial information or surprising content in this summary.
http://blog.syncpup.com/posts/foreach-derp-with-csh.html