To add to my thing onthe terminal. YOU cannot brake anything.I wasin in a 
linode shell for 3 straight days as root and I did not brake a thing.

Also the sudo command will let you be root for a short while for example


sudo shutdown -s now

or

sudo shutdown -h +240

Hope that helps.

> On Sep 7, 2014, at 23:22, Gordon Smith <gor...@mac-access.net> wrote:
> 
> Hi Esther
> 
> Excellently explained, as always.  This is a cross-platform application which 
> I’m trying to install.  I can’t share any specifics at this point owing to an 
> NDA.  But the developers say you need to be logged in as “Root” in order to 
> install it.  Presumably, this relates to the permissions issue which you 
> raise in your post.  Once the app is installed, you can do everything from 
> your own account so hopefully, it should only be necessary to do this once.
> 
> This has actually cause me quite a lot of frustration all day because I need 
> to get this done, and my woeful lack of Terminal experience is letting me 
> down badly yet again.  I learned a few things when I installed and configured 
> Snow Leopard Server.  But that was about fifty million years ago, and I’ve 
> probably forgotten most or all of it owing to the fact that I’ve allowed 
> myself to become very lazy in terms of installing software.
> 
> OK, so let’s go back to your post.  I can play the app anywhere on the 
> system, so if I log in as root, it can probably sit in the root directory of 
> the hard disk if that makes things simpler?
> 
> I will go and re-read your post to see if I can get my head around what I 
> need to do.  Once done, then it’s pretty much plain sailing from there on in.
> 
> Many thanks, as always.  Incidentally, Esther, I refrained from contacting 
> you regarding your Mac Access mail account because we still have a record of 
> your settings here.  So if it’s alright with you I’ll go ahead and create a 
> new account using those settings?  If not, by all means get back to us off 
> list if you’d like to discuss this further.
> 
> Many thanks again.
> 
> Kindest regards
> 
> Gordon
> 
> On 7 Sep 2014, at 20:41, Esther <mori...@mac-access.net> wrote:
> 
> Hello Gordon,
> 
> Shell scripts don't execute when invoked unless you have changed file 
> permissions on your system to allow them to execute.  This is a security 
> precaution, because you don't, in general, want arbitrary scripts to run on 
> your system without your express permission, and by default the files you 
> create or copy will not have executable privilege.
> 
> If I want to run a shell script from the Terminal command line, I first make 
> it executable:
> 
> chmod +x scriptname
> 
> If you only want the script owner to be able to execute the script, type:
> 
> chmod u+x scriptname
> 
> In this example, substitute the actual name of the script for "scriptname".  
> 
> Then, run the script with the command:
> 
> ./scriptname
> 
> The "dot" "slash" typed before the name of the script (with no spaces) refers 
> to the current directory, which is not usually included in your $PATH (which 
> are the directories that are searched by default for executable files).
> 
> Presumably the script takes care of the one-time installation, and you won't 
> use it again.  
> 
> Those two commands typed from Terminal -- the "chmod +x" before the 
> scriptname to make sure the file is executable and the "./scriptname" to run 
> the shell script file named "scriptname" should be all you need.
> 
> Technically, you also need to allow "read" permission to a shell script file 
> in order to run it, but you already have it in most cases, including the case 
> you describe.  The alternative to running the "chmod" command to change the 
> permissions mode of a file, if you have the file and directory on another 
> attached disk,  is to copy the file with the "cp -p" option.  The "-p" switch 
> preserves the permissions of the file you are copying, which includes 
> executable status for shell script files.
> 
> HTH Cheers,
> 
> Esther
> 
> 
> 
>> On Sep 7, 2014, at 7:57 AM, Gordon Smith <gor...@mac-access.net> wrote:
>> 
>> Hello everybody
>> 
>> I have a problem to which I’m hoping somebody can give me a definitive 
>> response.  I have an application which I need to install on to a machine, 
>> but the application in question was ported from LINUX and installs via a 
>> shell script.  When I open the script in the usual way, it is opening Xcode 
>> rather than installing as I had expected.  Is this normal behaviour and, if 
>> so, is there a work-around?
>> 
>> Many thanks.
>> 
>> Gordon
>> 
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