latex error .sty not found

Hi guys, if you've come into this error:
"latex error your-new-file.sty not found"
while building your .tex files, and you are sure you've just put them in some sort of directory like:
/usr/share/texmf/tex/latex/your-new-directory
you should run the command
$ texhash
and then, latex should be ready to find your style files
:)