Because sometimes, it’s always useful to know where to store these kind of files.
|.cls||tex/latex/base||Document class file|
|.sty||tex/latex/packagename||Style file: the normal package content|
These files have to be stored under
~/texmf or the equivalent folder if you
changes the default installation setting. Then you can add the files in the
required subfolders according to the table above. Lastely, it is necessary to
create/update the TeX database using the following command:
# no need to run this as root texhash ~/texmf
It’s done, you can enjoy your new files!