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Since the first expression glob("$_/f*") is only true for 'dir1', it should only return that element of the directory list (even though glob returns 3 files in that directory). You are missing the fact that grep puts the glob in a scalar context, and that makes it act as an iterator: In scalar context, glob iterates through such filename expansions, returning undef when the list is exhausted. With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
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In reply to Re^3: Using grep and glob to find directories containing file
by BrowserUk
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