linux add user permission to folder code example

Example 1: linux give permission to folder

sudo chmod -R a+rwx /path/to/folder

Example 2: linux add user to group

# Change the primary group a user is assigned to, note the -g here.
# When you use a lowercase g, you assign a primary group. When you 
# use an uppercase -G you assign a new secondary group.
usermod -g groupname username

Example 3: how to give permission to a user in linux on a folder

sudo chmod u+w myfolder