Installed, just not linked

Question

Note: I\'m not so good at using shell.

I was trying to install Valgrind using brew on Yosemite.

brew install --HEAD valgrind<

Answer 1

I had same a problem about permission, but after I give my permission, still error permission. And here I do, first:

brew unlink valgrind

and then,

brew link valgrind

hope this help.