is_writable

Gamma: Version 4.0
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# `is_writable`

`is_writable` -- determines if a file is writable.

## Syntax

    is_writable (path)

## Arguments

`path`

  A character string defining a file path and file name in this file system.

## Returns

t if the named file exists and is writable, otherwise nil.

## Example

        Gamma> is_writable("/usr/doc/FAQ/txt/FAQ");
        nil
        Gamma> is_writable("/home/robert/w/devel/lisp/mytestfile.dat");
        t
        Gamma>

## See Also

`is_readable`

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