whereis command output for -M and -B options is inversed

[Jean Vabre]

Ubuntu 14.04

using whereis command I came across the following situation

if I type '-M' option I get binaries result,
if I type '-B' option I get manual results,

command : whereis -M /usr -f apt-get

expected output : /usr/share/man/man8/apt-get.8.gz

real output : /usr/bin/apt-get /usr/bin/X11/apt-get

command : whereis -B /usr -f apt-get

expected output : /usr/bin/apt-get /usr/bin/X11/apt-get

real output : /usr/share/man/man8/apt-get.8.gz

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1539858/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[Jean Vabre (jean-6)]

added package

[Phillip Susi (psusi)]

Those switches instruct whereis on where it should search for binaries or man pages. You asked it to look only in a directory where the file is NOT and thus it does not report finding the file. Try:

whereis -B /usr/bin -f apt-get