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Re: bug in [ -f file ] test


From: Grisha Levit
Subject: Re: bug in [ -f file ] test
Date: Tue, 26 Jul 2016 15:06:50 -0400

Are you sure "file" is a link to an actual file, not, say, a directory?

$ rpm -q bash; echo $BASH_VERSION; cat /etc/redhat-release
bash-4.3.42-3.fc23.x86_64
4.3.42(1)-release
Fedora release 23 (Twenty Three)

$ touch file; ln -s file link; [[ -f link ]]; echo $?
0

On Tue, Jul 26, 2016 at 12:58 PM, László Házy <address@hidden> wrote:
I am running bash 4.3.42-3 on Fedore Core 23.

I noticed that the [ -f file ] test returns false if "file" is a symlink. Given the intended behavior (from a long time ago), this is wrong as the symlinks are supposed to be followed. It certainly brakes functionality in certain existing software.

Has the default behavior been changed somewhere along the time line and I am not aware of it?



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