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Re: Does [ -f FILE ] have a bug on testing a symlink ?


From: Cheng Rk
Subject: Re: Does [ -f FILE ] have a bug on testing a symlink ?
Date: Mon, 9 Feb 2015 22:57:49 +0000 (UTC)


On Monday, February 9, 2015 1:59 PM, Andreas Schwab <schwab@linux-m68k.org> 
wrote:
>> According this documentation `help test`, I am expecting it should return 
>> false on anything other than a regular file,
>>
>> -f FILE        True if file exists and is a regular file.
>>
>>
>> but why it returned true on a symlink to a regular file?
> (bash) Bash Conditional Expressions::
   Unless otherwise specified, primaries that operate on files follow
symbolic links and operate on the target of the link, rather than the
link itself.

> Andreas.

Then the builtin test help need a documentation fix, right?

For some purpose, I need to make sure the file is regular (like for creating 
archives); will have to do something like this?

[ -f tmp/sym-link ] && {
  [ -h tmp/sym-link ] && echo do something to break the symlink
}
do something to break link


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