Hey, Scott:

The feeling is mutual.


There's a bit more vocabulary associated with su. It's super user
because this is the user with extraordinary powers that will trump all
other permissions on the system.

Simple example: If you have multiple users and one forgets their
password, the super user can reset that user's password.

Janina

Scott Granados writes:
> And here I always thought it was switch user as that’s what it really does 
> not necessarily switching to root although that’s the most common use.  Learn 
> something new everytime you post, how about that!
> 
> > On Jun 29, 2017, at 11:17 AM, 'Janina Sajka' via MacVisionaries 
> > <macvisionaries@googlegroups.com> wrote:
> > 
> > I believe su was (and is) "super user," not "substitute user."
> > 
> > Jonathan Cohn writes:
> >> Ah, be very careful of any command in terminal that requires your 
> >> password. These are commands that are using the "sudo" command.
> >> 
> >> Sudo essentially says run this as root which is the most privileged user 
> >> on a UNIX system. While you can not break system files in Sierra due to 
> >> extra security added, any file in user space can be viewed or modified 
> >> when you use the sudo command. 
> >> Why sudo you might ask? Well originally there was su for substitute user. 
> >> This allows one to access the computer with another permissions for a 
> >> while. 
> >> 
> >> sudo is a bit more secure in that:
> >> 1. There is a configuration file in /etc/sudoers that says what commands 
> >> can be executed by whom whith what rights.
> >> 2. It prompts you four your password rather than the person you are trying 
> >> to execute as so there is no need to share a password to do this work.
> >> 
> >> Take care,
> >> Jonathan Cohn
> >> 
> >> 
> >> 
> >>> On Jun 27, 2017, at 4:51 PM, E.T. <ancient.ali...@icloud.com> wrote:
> >>> 
> >>>  Last I ran Terminal, I simply pasted code in and pressed enter. In some 
> >>> cases you may be asked for your log in password.
> >>> 
> >>> From E.T.'s Keyboard. . .
> >>> "God for you is where you sweep away all the
> >>> mysteries of the world, all the challenges to
> >>> our intelligence. You simply turn your mind off
> >>> and say God did it." --Carl Sagan
> >>> E-mail: ancient.ali...@icloud.com
> >>> 
> >>> On 6/27/2017 1:48 PM, Sharon Hooley wrote:
> >>>> Hi,
> >>>> 
> >>>> I want to try copying and pasting the coding that was sent earlier.  I 
> >>>> found Terminal in the “others” folder.  when I entered I found my last 
> >>>> log-in date, among other things, including shell .  I don’t know where 
> >>>> to type or paste.  .  Then I inadvertently closed the window so that it 
> >>>> said, “Terminal has no windows”.  So how, exactly, do I use it to put in 
> >>>> code?
> >>>> 
> >>>> Thanks,
> >>>> 
> >>>> 
> >>> 
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> > 
> > Janina Sajka,       Phone:  +1.443.300.2200
> >                     sip:jan...@asterisk.rednote.net
> >             Email:  jan...@rednote.net
> > 
> > Linux Foundation Fellow
> > Executive Chair, Accessibility Workgroup:   http://a11y.org
> > 
> > The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI)
> > Chair, Accessible Platform Architectures    http://www.w3.org/wai/apa
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-- 

Janina Sajka,   Phone:  +1.443.300.2200
                        sip:jan...@asterisk.rednote.net
                Email:  jan...@rednote.net

Linux Foundation Fellow
Executive Chair, Accessibility Workgroup:       http://a11y.org

The World Wide Web Consortium (W3C), Web Accessibility Initiative (WAI)
Chair, Accessible Platform Architectures        http://www.w3.org/wai/apa

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