Systemd mounted efivarfs read-write, allowing motherboard bricking via 'rm'

Re:Systemd mounted efivarfs read-write, allowing motherboard... by SEJeff on Saturday January 30, 2016 @12:16PM (#11002685)

Actually even if you do rm -f, the -i will still be added if it is an alias. Better is to use the bash builtin "type":

type rm is better than which rm, but it depends on what distro you're using. Some distros (Just checked on RHEL7) will fancify which as well ie:

$ type which which is aliased to `alias | /usr/bin/which --tty-only --read-alias --show-dot --show-tilde'

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Re:Systemd mounted efivarfs read-write, allowing motherboard... by Ao7bei3s on Saturday January 30, 2016 @12:28PM (#11002740)

> Actually even if you do rm -f, the -i will still be added if it is an alias.

Yes, I know, but rm ignores -i if -f is given.

  [root@example ~]# touch blah
  [root@example ~]# rm -i -f blah
  [root@example ~]#

And hence:

  [root@example ~]# which rm
  alias rm='rm -i'
  	/usr/bin/rm
  [root@example ~]# touch blah
  [root@example ~]# rm -f blah
  [root@example ~]#

@type: yes, you're right, thanks for the reminder.

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