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.

The intelligent reader will judge for himself. Without examining the facts fully and fairly, there is no way of knowing whether vox populi is really vox dei, or merely vox asinorum. — Cyrus H. Gordon

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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