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Re: Findfile finds no files [message #30056 is a reply to message #29979]

Wed, 03 April 2002 12:05

Stein Vidar Hagfors H[1] is currently offline

Stein Vidar Hagfors H[1]
Messages: 56
Registered: February 2000

Member

Pete Riley <uk2@mac.com> writes:

> Hi,
>
> I just came across a weird problem I'm not sure if it's been talked about
> before. I'm using IDL 5.5 on linux RH 7.2. I ran some code which calls
> findfile() last week and everything worked out fine. Today, it returns no
> files, even with
>
> Print,findfile('*')
>
> Yet $ls shows all the files in the current directory.
>
> Has anyone come across this?

I think I came across something similar a loong time ago, on various
unix systems. The problem arises when you have extremely many (long)
file names matching the pattern. The reason is that findfile uses
(used?) the "ls <pattern>" command, resulting in a file-name
expansion that causes an error with too long command lines.

Note: If I'm correct, I think you'll get all of the files by using
findfile with no arguments (i.e. spawning an ls command with no
filename expansion of the command line)!

The only way I've found around it is to write a separate find_file
function that uses e.g. "find -name '<pattern>' -print" on unix systems.

--
------------------------------------------------------------ --------------
Stein Vidar Hagfors Haugan
ESA SOHO SOC/European Space Agency Science Operations Coordinator for SOHO

NASA Goddard Space Flight Center, Email: shaugan@esa.nascom.nasa.gov
Mail Code 682.3, Bld. 26, Room G-1, Tel.: 1-301-286-9028/240-354-6066
Greenbelt, Maryland 20771, USA. Fax: 1-301-286-0264
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[Message index]

		Findfile finds no files By: Pete Riley on Tue, 02 April 2002 18:43
		Re: Findfile finds no files By: R.Bauer on Thu, 04 April 2002 02:56
		Re: Findfile finds no files By: Pete Riley on Wed, 03 April 2002 21:27
		Re: Findfile finds no files By: David Fanning on Wed, 03 April 2002 17:19
		Re: Findfile finds no files By: Richard Younger on Wed, 03 April 2002 16:18
		Re: Findfile finds no files By: Stein Vidar Hagfors H[1] on Wed, 03 April 2002 12:05
		Re: Findfile finds no files` (linux NFS bug) By: Robert Stockwell on Sat, 06 April 2002 11:27
		Re: Findfile finds no files By: thompson on Fri, 05 April 2002 12:17
		Re: Findfile finds no files By: R.Bauer on Sun, 05 May 2002 11:32

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