yes, sudo is temporary. Usually the default for sudo timeout is 15 minutes. there is a way to set it for longer/shorter, but I don't exactly remember how to accomplish it...

On 04/10/2013 01:35 PM, Pete Wright wrote:
Thanks, Ben
I do have 2.5 linux setups (don't have full-time access to the third, so 2.5). The rub is they are not identical hardware and do not behave the same with identical software, which I gave up trying to achieve. So I am now running Ubuntu 12.10 on one, Ubuntu Studio 12.10 on my main machine, and a hodge-podge mostly 12.04 on a mini laptop which is ethernetted into my main one..
Am I correct that SUDO gives temporary super-user status (but not root)?
I had what had to have been one of the rare few personally-owned Unix machines back in the early '80s, and am trying to dredge up and/or replace the old knowledge, after being mainly in the windows world from around 1984 until late last year..
Bizarre, I admit.



On Wed, Apr 10, 2013 at 10:13 AM, Andrew Huys <musiek.sparta...@gmail.com <mailto:musiek.sparta...@gmail.com>> wrote:

    Beware of "sudo", it gives you godlike powers...

    the best advice I can give:  If you have the resources, set up two
    computers, one of them being your stable production/work/school
    machine, the other being your experimental setup.  Try the new
    commands on the experimental machine, in case they don't work out
    like you hope.  Once you're comfortable with them, use them on the
    production machine.

    Good luck!

    Ben
    On 04/10/2013 10:07 AM, Pete Wright wrote:
    Thanks, Andrew.
    You and Alf are elevating my self-confidence to dangerous levels.
    cheers


    On Wed, Apr 10, 2013 at 7:00 AM, Andrew Huys
    <musiek.sparta...@gmail.com <mailto:musiek.sparta...@gmail.com>>
    wrote:

        "I get something from the repository I do not have to use
        synaptic to keep it up to date?"  If you use update-manager
        and have automatic updates turned on, no, you do not need to
        use synaptic for anything.

        However, Synaptic is /very/ useful when you're searching for
        packages to install and maybe don't know the names (if you
        dislike the software-center).  Synaptic is faster on my older
        machines (IBM/Lenovo T43p, etc.) than software center, as it
        does not have fancy graphics, ratings, reviews, etc.  Also,
        being able to install multiple items just by checking the
        boxes and clicking [apply] seems easier to me than finding
        each individual software in software center.

        As far as updating goes, I almost  never use the
        "update-manager" (had an issue with it at one time, don't
        remember what, but stopped using it then), I find it easier
        to do via command-line:

        sudo apt-get update
        Sudo apt-get upgrade

        I run these about once a week (or whenever i remember) just
        to keep on top of things.

        -AND Huys



        On 04/10/2013 09:46 AM, Pete Wright wrote:
        Thanks, Alf.
        So, to make sure I understand you, if I get something from
        the repository I do not have to use synaptic to keep it up
        to date?
        Is Synaptic still useful in any scenario, or is it
        completely irrelevant/obsolete?



        On Wed, Apr 10, 2013 at 6:39 AM, Alf Haakon Lund
        <a...@mellomrommet.no <mailto:a...@mellomrommet.no>> wrote:

            No,

            Nothing updates in the background, the update manager
            will always ask. It just means updates are not taken
            care of by canonical's Ubuntu team and that they may (or
            may not) be provided by the community.

            Kind of the same way Microsoft provides updates for IE
            but not for Firefox, although the example is a bit
            flawed as Microsoft won't let you download software they
            don't own through their channels.

            But that's the wonder of open source! Actually the
            software repositories is one of my favorites with
            Ubuntu. Finding and installing programs is so simple and
            updates automatically taken care of (if there are any).

            Alf




            On 10. april 2013 14:52, Pete Wright wrote:

                Really? Updating automatic? I knew Ubuntu updates
                automatically, but many
                items in the Software Centre say "Updates not
                provided by Ubuntu...may be
                provided by community" or something like that. Are
                these packages/programs
                automagically updating themselves in the background?
                Even the main Ubuntu
                thingy asks me before updating.


                On Wed, Apr 10, 2013 at 5:43 AM, Alf Haakon Lund
                <a...@mellomrommet.no <mailto:a...@mellomrommet.no>>wrote:

                    Not sure what you mean here (updates not
                    included)? Unless it's become
                    abandonware (no more in development), updating
                    should be automatically
                    taken care of.

                    Anyway glad to hear it was what you looked for.

                    Alf




                    On 09. april 2013 13:54, Pete Wright wrote:

                        Thanks again, Alf
                        Synapse aboard and seems just the ticket.
                        Also, after this morning's update, I find I
                        am now able to put my own
                        dubious artwork on the desktop.
                        I see Synapse updates are not included in
                        Ubuntu; will Synaptic do? I run
                        it periodically.



                        On Tue, Apr 9, 2013 at 4:27 AM, Pete Wright
                        <pnwri...@gmail.com
                        <mailto:pnwri...@gmail.com>> wrote:

                          Thanks Alf, I will try Synapse.

                            And as to desktop pic, I think that is
                            what I did and it didn't work.
                            It's
                            my computer, I think.


                            On Tue, Apr 9, 2013 at 12:45 AM, Alf
                            Haakon Lund <a...@mellomrommet.no
                            <mailto:a...@mellomrommet.no>

                                wrote:


                              I don't use unity, so I might be off
                            target. But "heads up search"

                                sounds
                                like what synapse is doing for me.
                                It's a small app that finds anything,
                                files or programs. Hit ctrl-space to
                                launch, type a few letters (just f
                                and
                                first suggestion is firefox, first
                                suggestion adapts to what is most
                                used).
                                Navigate through suggestions with
                                arrows.

                                Synapse is available in software
                                center and synaptic.

                                As for changing desktop image, for
                                me right-click on the desktop and
                                choosing desktop settings gets me
                                there. Or [ctrl-space], [de] and first
                                suggestion is desktop settings.

                                Good luck on ubuntu studio, and
                                never be afraid to ask!

                                All the best,
                                Alf





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