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<h1 class="topictitle1">Case-sensitivity in the QOpenSys file system</h1>
<div><p>Unlike the <span class="q">"root"</span> (/) file system, the QOpenSys file system
distinguishes between uppercase or lowercase when searching for object names. </p>
<div class="section"><p>For example, a character string supplied in all
uppercase characters will not match the same character string in which any
of the characters is lowercase.</p>
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<div class="section"><p>This case-sensitivity allows you to use duplicate names, provided
there is some difference in uppercase and lowercase of the characters making
up the name. For example, you can have an object named <samp class="codeph">Payroll</samp>,
an object named <samp class="codeph">PayRoll</samp>, and an object named <samp class="codeph">PAYROLL</samp> in
the same directory in QOpenSys.</p>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzaaxopenfs.htm" title="The QOpenSys file system is compatible with open system standards based on UNIX, such as POSIX and X/Open Portability Guide (XPG). Like the &#34;root&#34; (/) file system, this file system takes advantage of the stream file and directory support that is provided by the integrated file system.">Open systems file system (QOpenSys)</a></div>
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