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-rw-r--r--README3
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diff --git a/README b/README
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@@ -4,7 +4,8 @@ Zutils is a collection of utilities able to process any combination of
compressed and uncompressed files transparently. If any file given,
including standard input, is compressed, its decompressed content is used.
Compressed files are decompressed on the fly; no temporary files are
-created.
+created. Data format is detected by its magic bytes, not by the file name
+extension.
These utilities are not wrapper scripts but safer and more efficient C++
programs. In particular the option '--recursive' is very efficient in