Whichman uses a fault tolerant approximate matching algorithm to search for man-pages that match approximately the specified name. It can be used to locate the right page in case the man-page is available in several sections. The fault tolerant matching is very useful in cases where you remember only roughly the name of a command. The package contains also a fault tolerant file find utility (ftff) and a fault tolerant version of the "which" command (ftwhich).