wordpress permissions

For those who have their wordpress root folder under their home folder:

Ubuntu/apache

Add your user to www-data group:
CREDIT Granting write permissions to www-data group

You want to call usermod on your user. So that would be:
```
sudo usermod -aG www-data yourUserName
```
Assuming www-data group exists
Check your user is in www-data group:
```
groups yourUserName
```
You should get something like:
```
yourUserName : yourUserGroupName www-data
```
yourUserGroupName is usually similar to you user name
Recursively change group ownership of the folder keeping your user ownership
```
chown yourUserName:www-data -R yourWebSiteFolder/*
```
Change directory to yourWebSiteFolder
```
cd yourWebSiteFolder
```
Recursively change group premissions of the folders and sub-folders to enable write permissions:
```
find . -type d -exec chmod -R 775 {} \;
```
mode of /home/yourUserName/yourWebSiteFolder/' changed from 0755 (rwxr-xr-x) to 0775 (rwxrwxr-x)

Recursively change group premissions of the files and sub-files to enable write permissions:

find . -type f -exec chmod -R 664 {} \;

The result should look something like:

WAS:
-rw-r--r--  1 yourUserName www-data  7192 Oct  4 00:03 filename.html
CHANGED TO:
-rw-rw-r--  1 yourUserName www-data  7192 Oct  4 00:03 filename.html

Equivalent to:

chmod -R ug+rw foldername

Permissions will be like 664 or 775.

Assuming all files already belong to www-data user (you can check it with ls -slah command) who belongs to www-data group (next column after username in list of files) you can just add you user to the same www-data group to allow editing these files

# usermod -aG www-data username

for existing user, or

# adduser username www-data