change the owner of a directory from root to the user code example

Example 1: take ownership directory linux

sudo chown -R $USER ~/.blabla

Example 2: ubuntu change directory owner

sudo chown -R $USER ~/.blabla

Example 3: chown

Examples
chown root /u
Change the owner of /u to "root".
chown root:staff /u
Likewise, but also change its group to "staff".
chown -hR root /u
Change the owner of /u and subfiles to "root".