[TUHS] origin of the name 'glob'

Bakul Shah bakul at bitblocks.com
Mon Jul 10 10:49:35 AEST 2017


On Sun, 09 Jul 2017 17:31:24 PDT Chris Torek <torek at torek.net> wrote:
> >It would have been nice had RE's been the standard way to glob
> >files, but, that said, when I mention .*\.c to people instead of
> >*.c they don't much like it.
> 
> Regular expressions are more powerful than glob, but much
> harder to use correctly.  People who have not had exposure
> to them get them wrong all the time.  The most common mistakes,
> in my experience, are or include:
> 
>   - Forgetting to quote ".": "pat.h" accidentally matches
>     file "patch"!  This should read "pat\.h" (but see next
>     point).
> 
>   - Forgetting to anchor expressions on left and/or right:
>     "x\.c" matches "x.cc".  This should read "x\.c$" (or even
>     "^x\.c$" or perhaps ".*/x\.c$").

Also note that . in regexp doesn't match \n, while ? and * in a
glob expression do. Unix filenames can not contain \0 and /
but everything else is allowed.


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