On some systems, gunzip -c and zcat are identical. 
thulben@alpha:~
17 $ md5sum /bin/gzip /bin/zcat /bin/gunzip
57cd8cdf42fbda6e0a1f5e17ac986b4f  /bin/gzip
57cd8cdf42fbda6e0a1f5e17ac986b4f  /bin/zcat
57cd8cdf42fbda6e0a1f5e17ac986b4f  /bin/gunzip

[download]
The executable is one of those "magic" ones that recognizes how it was called and alters its behavior appropriately.

thor

The only easy day was yesterday

In reply to Re^2: dynamic zcat and grep by thor
in thread dynamic zcat and grep by clmcshque

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