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You are using readdir() to iterate over all of the files in the directory, but adding files to the directory inside of your loop. Remember that g(un)zip creates a new file to receive the output of the (de)compression. This is why things appear to be getting processed twice.

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In reply to Re^3: maddening system call gzip/gunzip problems by idsfa
in thread maddening system call gzip/gunzip problems by neilwatson

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