Cannot remove or edit file (even as root) [solved]
While trying to remove the now defunct skype repo from Debian12 I ran into a slight snag, both nano and rm failed to be able to edit the file. # rm skype-stable.list rm: cannot remove 'skype-stable.list': Operation not permitted It turns out that running lsattr showed the immutable attribute (i). # lsattr skype-stable.list ----i---------e------- skype-stable.list A quick update to this allowed the file to be removed without issue. # chattr -i -a skype-stable.list # lsattr skype-stable.list --------------e------- skype-stable.list # rm skype-stable.list File deleted!