Compress all the files inside a folder with 7zip

Question

As the title, suppose I have a set of files in a folder. Is it possible to compress every of them in separate files? Something like

7z *

Answer 1

as an example to compress every individual .jpg
cd dir/

for f in `ls -1 *.jpg` ; 
do
     7z a  "$f.7z" "$f" ;
done