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<title>20.7 Command language special variables and scope</title>

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  <a name="1204814"> </a><font color="#003366"  face="Verdana, Arial, Helvetica, sans-serif">20.7 	 Command language special variables and scope</font>
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  <a name="1204815"> </a><font size=2  face="Verdana, Arial, Helvetica, sans-serif">Some commands can be applied globally or to a part of an application. It is necessary to define the command <font size=2 face=Courier><strong><em>scope</em></strong></font>, that is the part of the application to which it applies. For this purpose, an application may be divided into address spaces, divided into programs, each of which may be divided into tasks, each of which may contain frames. Specifying a program, task or frame is described in <a href="comlan12.htm#1204697"><font  color="#0000ff" face="Verdana, Arial, Helvetica, sans-serif"><i>Section

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