One of the defining features of UNIX and UNIX-like operating systems is that "everything is a file" [1].* Documents, directories, links, input and ...
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Great article. Kernighan's example reminds me of Doug McIlroy's code review of Donald Knuth where he replaces a large Pascal program with a shell one-liner.
The related section is very interesting.
Within the
unix-history-repo, there's a link to this visualisation, which I think is pretty cool.For anyone interested, the visualization is created using Gource.
Beautiful article beautifully written 👍