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Re: testing if two strings point to the same file [message #94265 is a reply to message #94264]

Wed, 15 March 2017 15:56

Helder Marchetto
Messages: 520
Registered: November 2011

Senior Member

On Wednesday, March 15, 2017 at 11:43:13 PM UTC+1, Edward Hyer wrote:
> Hello IDL Wizards,
>
> IDL> file1='/tmp/qq/qq.dat'
> IDL> file2='/tmp//qq//qq.dat'
> IDL> file_copy,file1,file2
> % FILE_COPY: Source file must be different from target file.
>
> This situation will only arise if someone has done something dumb, or at least inconsistent. Let he/she who is without sin cast the first stone.
>
> Is there a good way to test if FILE1 and FILE2 are actually the same file?
>
> --Edward H.

I would try this (it works on windows):

f1_info = file_info(file1)
f2_info = file_info(file2)
if f1_info.name ne f1_info.name then file_copy,file1,file2 $
else print, 'no need to *overselfcopy*'

If you like to keep things short(er):
if (file_info(file1)).name ne (file_info(file2)).name then file_copy,file1,file2

cheers,
Helder

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[Message index]

		testing if two strings point to the same file By: MarioIncandenza on Wed, 15 March 2017 15:43
		Re: testing if two strings point to the same file By: Helder Marchetto on Wed, 15 March 2017 15:56
		Re: testing if two strings point to the same file By: MarioIncandenza on Wed, 15 March 2017 16:52
		Re: testing if two strings point to the same file By: wlandsman on Wed, 15 March 2017 16:42
		Re: testing if two strings point to the same file By: MarioIncandenza on Wed, 15 March 2017 16:52

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