The whatis command gives a strict and one-liner answer which is not much helpful other than acknowledging the purpose of the command, Moreover, it never says a single word about the available options. Whereis Command whatis Command – Show Description of a Command
The whereis command hardly tells anything other than the location of installed binaries (commands), source code, and the manual page of the command.
Linux Command Help whereis Command – Find the Location of a Command While going through man pages for options and help, the description in man pages are too lengthy to understand especially in a short span of time. Some of the other options may include commands like ‘ help‘, ‘ whereis‘, and ‘ whatis‘, but all have their pros and cons.
We use man pages to get some help in such situations. What you do when you are not sure of the command you are running especially in case of complex Linux commands which use a lot of options.
