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From: ntp@tf2.isl.mei.co.jp (Naoya TAKAO)
Newsgroups: comp.lang.perl
Subject: file test operators + null string
Message-ID: <NTP.91Feb14184650@gabriel.tf2.isl.mei.co.jp>
Date: 14 Feb 91 09:46:50 GMT
Sender: news@tf1.isl.mei.co.jp
Reply-To: ntp@tf2.isl.mei.co.jp
Distribution: comp
Organization: Matsushita Electric Industrial Ltd. Kadoma, Japan.
Lines: 16

I think the file test operators supplied with null string should
always return an undefined value.

I tried all the file test operations (except -M -A -C) with null
string, on my home directory, and the operations that returned TRUE
were:(perl@3.044, sun3/4.0.3 and solbourne(sun4/4.0.3 compatible))

	-r, -w, -x, -o, -R, -W, -X, -O, -e, -s, -d, -B.

I guess, "./" is added to the args of the file operators ? (I'm not
sure, I couldn't find it in sources.)

--
Naoya TAKAO (TAKAO is my family name)
ntp@tf2.isl.mei.co.jp
Matsushita Electric Industrial Co., Ltd.