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Re: not wanting to delete somebody's home directory

On 2019-07-05 at 11:32, mick crane wrote:

> On 2019-07-05 16:29, Greg Wooledge wrote:
>> On Fri, Jul 05, 2019 at 04:24:42PM +0100, mick crane wrote:
>>> I doing some code in perl and I'm not very good at it. code makes
>>> some images and saves them to a directory. If the directory
>>> doesn't exist it gets made and if it does exist all the files in
>>> it get deleted before putting some new ones in.
>> Have you considered simply *not* deleting all the existing files?
>> Just leaving them alone?
> after they get made I rename them all in consecutive order and if 
> there's other files in there the number order will get messed up.

Then the obvious solution would seem to be: before even starting, check
whether there are any files in the directory that don't match the naming
pattern you expect - or, even more importantly, any subdirectories -
and, if so, abort with an error message and don't do anything.

   The Wanderer

The reasonable man adapts himself to the world; the unreasonable one
persists in trying to adapt the world to himself. Therefore all
progress depends on the unreasonable man.         -- George Bernard Shaw

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