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<div><h1 id="a0000000083">1.7 break</h1>
<p><a name="a0000000999" id="a0000000999"></a> </p><pre>
break [<loopname>]
</pre><p>The <tt class="tt">break</tt> command<a name="a0000001000" id="a0000001000"></a> terminates execution of <tt class="tt">do</tt>, <tt class="tt">while</tt>, <tt class="tt">for</tt> and <tt class="tt">foreach</tt> loops in an analogous manner to the <tt class="tt">break</tt> statement in the C programming language. Execution resumes at the statement following the end of the loop. For example, the following loop would only print the numbers 1 and 2: </p><pre>
for i = 1 to 10
{
print i
if (i==2)
{
break
}
}
</pre><p>If several loops are nested, the <tt class="tt">break</tt> statement only acts on the innermost loop. If the <tt class="tt">break</tt> statement is encountered outside of any loop structure, an error results. Optionally, the <tt class="tt">for</tt>, <tt class="tt">foreach</tt>, <tt class="tt">do</tt> and <tt class="tt">while</tt> commands may be supplied with a name for the loop, prefixed by the word <tt class="tt">loopname</tt>, as in the examples: </p><pre>
for i=0 to 4 loopname iloop
foreach i in "*.dat" loopname DatafileLoop
</pre><p>When loops are given such names, the <tt class="tt">break</tt> statement may be followed by the name of the loop whose iteration is to be broken, allowing it to act upon loops other than the innermost one. </p><p>See also the <tt class="tt">continue</tt> command. </p></div>
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