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Document file permission requirements for file_exists function #4642

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Document file permission requirements for file_exists function #4642

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3 changes: 3 additions & 0 deletions reference/filesystem/functions/file-exists.xml
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Expand Up @@ -32,6 +32,9 @@
<filename>\\computername\share\filename</filename> to check files on
network shares.
</para>
<para>
On Linux, both read and execute permissions are required for the function to return true.
</para>
</listitem>
</varlistentry>
</variablelist>
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