![]() Whatis can be used to simultaneously search for information about multiple topics. This database contains just the title, section number and description from the NAME section of each page in the man manual that is built into most Unix-like systems.įor example, the following provides a single line summary of the head command (which by default displays the first ten lines of each file that is provided to it as an argument): ![]() It accomplishes this by searching the short descriptions in the whatis database for each keyword provided to it as an argument (i.e., input data). The whatis command provides very brief descriptions of command line programs (i.e., all-text mode programs) and other topics related to Linux and other Unix-like operating systems. ![]() How to use the whatis Command - by The Linux Information Project (LINFO) LINFO
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