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OpenSolaris 2009.06 - man page for whatis (opensolaris section 1)

whatis(1)							   User Commands							 whatis(1)

whatis - display a one-line summary about a keyword
whatis command...
whatis looks up a given command and displays the header line from the manual section. You can then run the man(1) command to get more information. If the line starts name(section)... you can do man -ssection name to get the documentation for it. Try whatis ed and then you should do man -s 1 ed to get the manual page for ed(1). whatis is actually just the -f option to the man(1) command. whatis uses the /usr/share/man/windex database. This database is created by catman(1M). If this database does not exist, whatis will fail.
/usr/share/man/windex Table of contents and keyword database
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Availability |SUNWdoc | +-----------------------------+-----------------------------+ |CSI |Enabled | +-----------------------------+-----------------------------+
apropos(1), man(1), catman(1M), attributes(5) SunOS 5.11 14 Sep 1992 whatis(1)