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

by Anonymous Monk
on Apr 20, 2000 at 21:57 UTC ( #8221=categorized question: print w/replies, xml ) Need Help??
Contributed by Anonymous Monk on Apr 20, 2000 at 21:57 UTC
Q&A  > files


Answer: How do I test whether or not a file is writable?
contributed by chromatic

The -w test will do: 

if (-w FILEHANDLE) {
    print "It's writeable by my effective uid or gid!\n";
}

[download]
For more information, see -X (or perldoc -f -X).
Answer: How do I test whether or not a file is writable?
contributed by kiruthika.bkite 

 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.

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