[Scilab-users] Deletion of console content

[Federico Miyara]

Jens,

I'm not quite an expert, but I can tell that by default the historic 
content of the console is saved somewhere and can be accessed in a small 
dockable window generally located at the right bottom corner of the 
screen, named Command History. It can also be deleted by first clicking 
on this window to make Scilab focus on it, then opening the Edit menu 
and clearing history or, I presume, deleting (I don't want to test that 
because sometimes I use it and don't want to lose it just to experiment 
:) ). It is possible to disable it from the Edit menu for the console, 
preferences, Command History. In that dialog you can also decide where 
the History file will be saved and the maximum number of lines to be 
saved. You could also use a secure deleting tool on that file.

Regarding the previous versions of a script, I'm not quite sure. If your 
aim is to recover a version you have accidentally overwritten, I'm 
afraid it may be difficult since there is no guarantee that the new 
version is saved in a different cluster in the disk. If, on the 
contrary, the aim is to prevent other users of the same computer to spy 
on your work, there is no guarantee either that parts of the script do 
not remain undeleted. One possibility would be to save your work to a 
memory stick, I don't think a local copy is preserved since at most the 
script is loaded into volatile RAM which is deleted when you shut your 
system down.

Regards,

Federico Miyara



On 25/09/2019 11:24, Jens Simon Strom wrote:
>
> Hello Scilab experts,
>
> I have two questions:
>
>   * 1. After closing Scilab, is the content of what has appeared on
>     the console during the session still accessible for computer
>     experts? In other words: Is the console content securely deleted?
>   * 2. After editing and executing a script and closing Scilab, is the
>     script before the edit still accesible for computer experts?
>
> Kind regards
>
> Jens
>
>
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