><b>Returns:</b></dt><dd> a command suitable for shell execution
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<td class="memname">QString quoteArg</td>
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<td class="paramtype">QString&nbsp;</td>
<td class="paramname"><em>arg</em></td>
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<td>)</td>
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<div class="memdoc"><p>Quotes <b>arg</b> according to system shell rules.
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