Re: How do I test whether or not a file is writable?

 if(-f $name )
    {
        if(!(-w $name))
        {
            print "File '$name' doesn't have write permission\n";
        }
    }
[download]

-f switch is used to check whether $name is file or not.
-w switch is used to test whether file has write permission or not.

Comment on Re: How do I test whether or not a file is writable? Download Code

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Re: Answer: How do I test whether or not a file is writable? by JavaFan (Canon) on Mar 18, 2010 at 14:34 UTC
There's no point testing for both `-f` and `-w`. If the file doesn't exists (or if its existence cannot be determined), `-w` will return false. And if `-w` returns true, the file exists.	[reply] [d/l] [select]
Re^2: Answer: How do I test whether or not a file is writable? by clinton (Priest) on Mar 18, 2010 at 16:41 UTC
Yes, but `-w` would also return true if the file is actually a writeable directory	[reply] [d/l]