chmod 777
if you go for a console command, it will be chmod -R 777 /www/store. The options -R(or --recursive) make it recursive.
if you need more information on chmod ordering see. File Permission
if by full permissions you mean 777
navigate to the folder and
chmod -R 777
you can give permission to the folder and all of its contents using the -R I.e recursive permissions option .
Ideally give 755 permission for security reasons to the web folder.
sudo chmod -R 755 /www/store
chmod linux 777
N Description ls binary 0 No permissions at all --- 000 1 Only execute --x 001 2 Only write -w- 010 3 Write and execute -wx 011 4 Only read r-- 100 5 Read and execute r-x 101 6 Read and write rw- 110 7 Read, write, and execute rwx 111