http://95.179.246.60/mediawiki/index.php?action=history&feed=atom&title=Create_a_new_non-existing_file_name 2026-05-08T12:45:10Z Revision history for this page on the wiki MediaWiki 1.39.17 http://95.179.246.60/mediawiki/index.php?title=Create_a_new_non-existing_file_name&diff=106&oldid=prev 2025-05-04T20:38:14Z

<p>imported material</p> <p><b>New page</b></p><div><br /> &#039;&#039;&#039;Problem&#039;&#039;&#039; It often happens it is necessary to make a new filename. For example a new log file name, or a new temporary file to contain the output of a Unix program. How to do it?<br /> <br /> &#039;&#039;&#039;Solution&#039;&#039;&#039;. The method to use use &lt;code&gt;DirectoryEntry &gt;&gt; nexNameFor: extension:&lt;/code&gt;. In the example below I create a new filename to be into the directory &#039;&#039;/tmp&#039;&#039;. Observe well the output is a &lt;code&gt;String&lt;/code&gt;, not a &#039;&#039;FileEntry&#039;&#039;, the file is not created, just a name for it.<br /> (&#039;/tmp&#039; asDirectoryEntry ) nextNameFor: &#039;stdout&#039; extension: &#039;txt&#039;. &quot;=&gt; &#039;stdout.001.txt&#039; &quot;<br /> &#039;&#039;&#039;Solution 2&#039;&#039;&#039;. Use &lt;code&gt;#assureExistence&lt;/code&gt; on the &lt;code&gt;FileEntry&lt;/code&gt; or &lt;code&gt;DirectoryEntry&lt;/code&gt;.<br /> &#039;/tmp/stdout.001.txt&#039; asFileEntry assureExistence.`&quot;=&gt; /tmp/stdout.001.txt&quot;</div>

Nmingott