Help is at hand!
- man -k keyword
$ man -k hexdump hexdump (1) - ASCII, decimal, hexadecimal, octal dump xxd (1) - make a hexdump or do the reverse. $
$ man -k hexdump hexdump (1) - ASCII, decimal, hexadecimal, octal dump xxd (1) - make a hexdump or do the reverse. $