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<h1 class="topictitle1">Command names</h1>
<div><p>The command name identifies the function that will be performed
by the program that is called when the command is run. Most command names
consist of a combination of a verb (or, action) followed by a noun or phrase
that identifies the receiver of the action (or object being acted on): (command
= verb + object acted on).</p>
<div class="section"><p>Abbreviated words, usually one to three letters, make up the command
name. This reduces the amount of typing that is required to enter the command. </p>
<p>For
example, you can create, delete, or display a library; so the verb abbreviations
CRT, DLT, and DSP are joined to the abbreviation for library, LIB. The result
is three commands that can operate on a library: <span class="cmdname">CRTLIB</span>, <span class="cmdname">DLTLIB</span>,
and <span class="cmdname">DSPLIB</span>. In another example, one of the CL commands
is the Send Message command. You would use the <span class="cmdname">Send Message (SNDMSG)</span> command
to send a message from a user to a message queue.</p>
<p>The conventions for
naming the combination verb and object commands are as follows:</p>
<ul><li>The primary convention (as just shown) is to use three letters from each
word in the descriptive command name to form the abbreviated command name
that is recognized by the system.</li>
<li>The secondary convention is to use single letters from the ending word
or words in the command title for the end of the command name, such as the
three single letters DLO on the <span class="cmdname">Delete Document Library Object (DLTDLO)</span> command.</li>
<li>An occasional convention is to use single letters in the middle of the
command name (usually between commonly used three-character verbs and objects),
such as the letters CL in the <span class="cmdname">Create CL Program (CRTCLPGM)</span> command.</li>
</ul>
<p>Some command names consist of the verb only, such as the <span class="cmdname">Move
(MOV)</span> command, or an object only, such as the <span class="cmdname">Data (DATA)</span> command.
A few commands have an i5/OS™ command name, and can also be called using one
or more alternate names that may be familiar to users of systems other than
the i5/OS system.
An alternate name is known as an <strong>alias</strong>, such as the name CD is an
alias for the <span class="cmdname">Change Current Directory (CHGCURDIR)</span> command.</p>
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<div>
<ul class="ullinks">
<li class="ulchildlink"><strong><a href="clabbr.htm">Abbreviations of CL commands and keywords</a></strong><br />
This section contains alphabetic lists of abbreviations that are
used in CL commands that are part of IBM<sup>®</sup> i5/OS and other IBM<sup>®</sup> iSeries™ licensed programs.</li>
</ul>
<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="rbam6alphalist.htm" title="This defines a command and provides information about how commands are named, the parts of a command, and command documentation. A control language (CL) command is a single control language statement.">Commands</a></div>
</div>
<div class="relconcepts"><strong>Related concepts</strong><br />
<div><a href="rbam6simpqual.htm" title="The name of a specific object that is located in a library can be specified as a simple name or as a qualified name.">Simple and qualified object names</a></div>
<div><a href="rbam6objnamrules.htm" title="This describes rules for naming i5/OS objects.">Object naming rules</a></div>
</div>
<div class="relref"><strong>Related reference</strong><br />
<div><a href="rbam6objtypeexpand.htm" title="The object type (OBJTYPE) parameter specifies the types of i5/OS objects that can be operated on by the command in which they are specified.">OBJTYPE parameter</a></div>
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