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| <h3 class="section">8.48 <code>CHMOD</code> — Change access permissions of files</h3> |
| |
| <p><a name="index-CHMOD-519"></a><a name="index-file-system_002c-change-access-mode-520"></a> |
| <dl> |
| <dt><em>Description</em>:<dd><code>CHMOD</code> changes the permissions of a file. |
| |
| <p>This intrinsic is provided in both subroutine and function forms; however, |
| only one form can be used in any given program unit. |
| |
| <br><dt><em>Standard</em>:<dd>GNU extension |
| |
| <br><dt><em>Class</em>:<dd>Subroutine, function |
| |
| <br><dt><em>Syntax</em>:<dd> |
| <p><table summary=""><tr align="left"><td valign="top" width="80%"><code>CALL CHMOD(NAME, MODE[, STATUS])</code> |
| <br></td></tr><tr align="left"><td valign="top" width="80%"><code>STATUS = CHMOD(NAME, MODE)</code> |
| <br></td></tr></table> |
| |
| <br><dt><em>Arguments</em>:<dd> |
| <p><table summary=""> |
| <tr align="left"><td valign="top" width="15%"><var>NAME</var> </td><td valign="top" width="70%">Scalar <code>CHARACTER</code> of default kind with the |
| file name. Trailing blanks are ignored unless the character |
| <code>achar(0)</code> is present, then all characters up to and excluding |
| <code>achar(0)</code> are used as the file name. |
| |
| <p><br></td></tr><tr align="left"><td valign="top" width="15%"><var>MODE</var> </td><td valign="top" width="70%">Scalar <code>CHARACTER</code> of default kind giving the |
| file permission. <var>MODE</var> uses the same syntax as the <code>chmod</code> utility |
| as defined by the POSIX standard. The argument shall either be a string of |
| a nonnegative octal number or a symbolic mode. |
| |
| <p><br></td></tr><tr align="left"><td valign="top" width="15%"><var>STATUS</var> </td><td valign="top" width="70%">(optional) scalar <code>INTEGER</code>, which is |
| <code>0</code> on success and nonzero otherwise. |
| <br></td></tr></table> |
| |
| <br><dt><em>Return value</em>:<dd>In either syntax, <var>STATUS</var> is set to <code>0</code> on success and nonzero |
| otherwise. |
| |
| <br><dt><em>Example</em>:<dd><code>CHMOD</code> as subroutine |
| <pre class="smallexample"> program chmod_test |
| implicit none |
| integer :: status |
| call chmod('test.dat','u+x',status) |
| print *, 'Status: ', status |
| end program chmod_test |
| </pre> |
| <p><code>CHMOD</code> as function: |
| <pre class="smallexample"> program chmod_test |
| implicit none |
| integer :: status |
| status = chmod('test.dat','u+x') |
| print *, 'Status: ', status |
| end program chmod_test |
| </pre> |
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