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FAQ : how to check for existence of a file ABC*

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From: Helmut Jarausch <jarausch@xxxxxxxxxxxxxxxxxxx>
To: zsh-users@xxxxxxx
Subject: FAQ : how to check for existence of a file ABC*
Date: Fri, 12 Feb 2010 12:11:48 +0100 (CET)
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Reply-to: jarausch@xxxxxxxxxxxxxxxxxxx

Hi,

sorry if this is a FAQ (I just couldn't find it)

I like to check if there is any file matching a given file pattern
e.g.  XX*

My problem is,

if NULL_GLOB is unset the shell bails out if no such file exists;
but if NULL_GLOB is set, then the test   [[ -f XX* ]] is invalid since
XX* expands to a null string.

Many thanks for your patience,
Helmut.

-- 
Helmut Jarausch

Lehrstuhl fuer Numerische Mathematik
RWTH - Aachen University
D 52056 Aachen, Germany

Follow-Ups:
- Re: FAQ : how to check for existence of a file ABC*
  - From: Frank Terbeck

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