What are sticky bit?
Files located in a directory with the sticky bit set can only be deleted or renames by the owner of the file or by the root user.
How to set Sticky bit?
chmod +t directory
How to Remove the Sticky bit Option
chmod -t directory
The sticky bit shows up in the execute position of the “other” as in Owner, Group, Other permission.
u=rwx,g=rwx,o=rwt