What does the last character '+' mean? This seems not to be of standard Linux. Is this a mark to show this file is in use? How do I forcibly get rid of it?
The next field contains a plus (‘+’) character if the file has an ACL, or a space (‘ ’) if it does not. The ls utility does not show the actual ACL; use getfacl(1) to do this.
The next field contains a plus (‘+’) character if the file has an ACL, or a space (‘ ’) if it does not. The ls utility does not show the actual ACL; use getfacl(1) to do this.