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annotate docs/nitros9guide/ex.refentry @ 1299:1f0995cd0431

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REL is now back-ported to OS-9 Level One
author boisy
date Mon, 01 Sep 2003 16:59:50 +0000
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1 <refentry id="ex">
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2 <refnamediv>
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3 <refname>EX</refname>
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4 <refpurpose>Execute program as overlay</refpurpose>
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5 </refnamediv>
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6
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7 <refsynopsisdiv>
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8 <cmdsynopsis>
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9 <command>ex</command>
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10 <arg choice="plain">
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11 <replaceable>module name</replaceable>
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12 </arg>
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13 <arg choice="opt">
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14 <replaceable>modifiers</replaceable>
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15 </arg>
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16 <arg choice="opt">
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17 <replaceable>parameters</replaceable>
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18 </arg>
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19 </cmdsynopsis>
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20 </refsynopsisdiv>
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21
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22 <refsect1><title>Description</title>
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23 <para>
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24 This a shell built-in command that causes the process executing the
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25 shell to start execution of another program. It permits a transition
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26 from the shell to another program without creating another process,
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27 thus conserving system memory.
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28 </para>
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29 <para>
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30 This command is often used when the shell is called from another
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31 program to execute a specific program, after which the shell is not
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32 needed. For instance, applications which only use <command>basic09</command> need not
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33 waste memory space on <command>shell</command>.
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34 </para>
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35 <para>
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36 The <command>ex</command> command should always be the last command on a shell input
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37 line because any command line following will never be processed.
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38 </para>
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39 <para>
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40 NOTE: Since this is a built-in <command>shell</command> command, it does not appear in
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41 the CMDS directory.
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42 </para>
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43 <para>
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44 For more information see: <xref linkend="sec4.5"/>,
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45 <xref linkend="sec4.6"/>, <xref linkend="sec4.9"/>
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46
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47 </para>
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48 </refsect1>
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49 <refsect1><title>Examples</title>
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50 <screen>
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51 ex BASIC09
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52
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53 tsmon /t1&amp;; tsmon /t2&amp;; ex tsmon /term
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54 </screen>
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55 </refsect1>
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56 </refentry>
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