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Re: Copying files in IDL [message #31192 is a reply to message #31190]

Wed, 19 June 2002 19:55

marc schellens[1]
Messages: 183
Registered: January 2000

Senior Member

Reimar Bauer wrote:
>
> Sean Raffuse wrote:
>>
>> Hello folks. I would like to make a copy of an hdf file, changing only to
>> filename and the content of one of datasets in the hdf. I have no problem
>> putting in the new content, but this overwrites the old file, which I need
>> to preserve. How do I copy and/or rename the file in IDL? I don't want to
>> have to rebuild the entire hdf file and it's dozens of attributes. Just a
>> near exact copy with a different name.
>>
>> Thanks in advance,
>>
>> Sean
>
> Dear Sean,
>
> what's with this primitive way.
>
> spawn,'cp file.hdf new_file.hdf'
>
> and then operations on then new file.
>
> regards

The disadvantage of this solution is that it's not portable.
If the filesize is not to large, you can do something like:

openr,1,'file.hdf'
fs=fstat(1)
b=bytarr(fs.size)
readu,1,b
close,1
openw,1,'new_file.hdf'
writeu,1,b
close,1

cheers,
marc

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[Message index]

		Re: Copying files in IDL By: R.Bauer on Thu, 20 June 2002 00:14
		Re: Copying files in IDL By: marc schellens[1] on Wed, 19 June 2002 19:55
		Re: Copying files in IDL By: R.Bauer on Wed, 19 June 2002 08:51
		Re: Copying files in IDL By: muswick on Sun, 14 July 2002 21:49

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