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Re: filename check [message #22218 is a reply to message #22084]

Tue, 24 October 2000 00:00

Edward Max Pottasch is currently offline

Edward Max Pottasch
Messages: 3
Registered: October 2000

Junior Member

Stuart Colley <src@star.ucl.ac.uk> wrote in message
news:Pine.OSF.3.96.1001024143333.20360F-100000@zuaxp7.star.u cl.ac.uk...
>
> Can anyone suggest a way to check that a file exists before attempting to
> read from it, since the error messages obtained from trying to read from a
> non-existing file, don't make it clear that file doesn't exist.
>
> cheers,
> S
>

hi Stuart,

my way of IDL programming is rather simple since I am only familiar with the
older versions of IDL (v.3.4.1). Anyway this works for me:

ciao, Ed

fn='filename'

; check if file exists
ff=FINDFILE(fn)

IF (ff(0) EQ fn) THEN BEGIN

; do your stuff

ENDIF

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[Message index]

		filename check By: Stuart Colley on Tue, 24 October 2000 00:00
		Re: filename check By: R.Bauer on Wed, 25 October 2000 00:00
		Re: filename check By: Edward Max Pottasch on Tue, 24 October 2000 00:00
		Re: filename check By: Paul van Delst on Tue, 24 October 2000 00:00
		Re: filename check By: Dick Jackson on Tue, 24 October 2000 00:00
		Re: filename By: Pavel A. Romashkin on Wed, 07 February 2001 09:20
		Re: filename By: Martin Schultz on Wed, 07 February 2001 05:21

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