Permission denied when try any command in magento 2.1

Question

When I try to set permissions to folder and files using command like

find . -type f -exec chmod 644 {} \;                    // 644 permission for files
find . -type d -exec chmod 755 {} \;                    // 755 permission for directory 
find ./var -type d -exec chmod 777 {} \;                // 777 permission for var folder
find ./pub/media -type d -exec chmod 777 {} \;
find ./pub/static -type d -exec chmod 777 {} \;
chmod 777 ./app/etc
chmod 644 ./app/etc/*.xml

after using this command my site not working properly and permission denied error when try any command

Answer 1

You need to have root privileges in order to give permission, If you are using amazon ec2 try:- sudo su - to switch to root and then try to give permission