My script is replacing sysvinit with systemd inside a chroot while building a debian image with debootstrap.

Since this is a "dangerous" action, apt-get will ask a silly question: "To continue type in the phrase 'Yes, do as I say!'"

How can I script the reply to that?

EDIT: I tried all the -y --yes --force-yes options, but they don't work.


Strangely, it seems asked even with --force-yes:

apt-get remove -y --force-yes systemd


echo 'Yes, do as I say!' | apt-get remove systemd

worked neatly.

| improve this answer | |

apt-get has a -y, --yes, --assume-yes switch:

       Automatic yes to prompts; assume "yes" as answer to all prompts and
       run non-interactively. If an undesirable situation, such as
       changing a held package, trying to install a unauthenticated
       package or removing an essential package occurs then apt-get will
       abort. Configuration Item: APT::Get::Assume-Yes.

or, in alternative a --force-yes switch:

       Force yes; this is a dangerous option that will cause apt to
       continue without prompting if it is doing something potentially
       harmful. It should not be used except in very special situations.
       Using force-yes can potentially destroy your system! Configuration
       Item: APT::Get::force-yes


| improve this answer | |
  • I should have mentioned that I tested that, but it did not work. will update Q. – Lennart Rolland May 29 '15 at 23:03
  • Ok, no problem, at the moment I'm not on a debian based system so I can't try my solution on my own and recognize it doesn't work. – lgaggini May 29 '15 at 23:09

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