-b

Search only for binaries.

-m

Search only for manual sections.

-s

Search only for sources.

-u

Search for unusual entries. A file is said to be unusual if it does not have one entry of each requested type. Thus `whereis -m -u *' asks for those files in the current directory which have no documentation.

-B

Change or otherwise limit the places where whereis searches for binaries.

-M

Change or otherwise limit the places where whereis searches for manual sections.

-S

Change or otherwise limit the places where whereis searches for sources.

-f

Terminate the last directory list and signals the start of file names, and must be used when any of the -B, -M, or -S options are used.

example% cd /usr/bin
example% whereis -u -M /usr/man/man1 -S /usr/src -f *

/{bin,sbin,etc}

/usr/{lib,bin,old,new,local,games,include,etc,src,man,sbin,

X386,TeX,g++-include}

/usr/local/{X386,TeX,X11,include,lib,man,etc,bin,games,emacs}

whereis has a hard-coded path, so may not always find what you're looking for.