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<h4 class="subsection">14.2.2 Simple Output</h4>
<p>Once a file has been opened for writing a string can be written to the
file using the <code>fputs</code> function. The following example shows
how to write the string ‘<samp><span class="samp">Free Software is needed for Free Science</span></samp>’
to the file ‘<samp><span class="samp">free.txt</span></samp>’.
<pre class="example"> filename = "free.txt";
fid = fopen (filename, "w");
fputs (fid, "Free Software is needed for Free Science");
fclose (fid);
</pre>
<!-- file-io.cc -->
<p><a name="doc_002dfputs"></a>
<div class="defun">
— Built-in Function: <b>fputs</b> (<var>fid, string</var>)<var><a name="index-fputs-777"></a></var><br>
<blockquote><p>Write a string to a file with no formatting.
<p>Return a non-negative number on success and EOF on error.
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<p class="noindent"><strong>See also:</strong> <a href="doc_002dscanf.html#doc_002dscanf">scanf</a>, <a href="doc_002dsscanf.html#doc_002dsscanf">sscanf</a>, <a href="doc_002dfread.html#doc_002dfread">fread</a>, <a href="doc_002dfprintf.html#doc_002dfprintf">fprintf</a>, <a href="doc_002dfgets.html#doc_002dfgets">fgets</a>, <a href="doc_002dfscanf.html#doc_002dfscanf">fscanf</a>.
</p></blockquote></div>
<p>A function much similar to <code>fputs</code> is available for writing data
to the screen. The <code>puts</code> function works just like <code>fputs</code>
except it doesn't take a file pointer as its input.
<!-- file-io.cc -->
<p><a name="doc_002dputs"></a>
<div class="defun">
— Built-in Function: <b>puts</b> (<var>string</var>)<var><a name="index-puts-778"></a></var><br>
<blockquote><p>Write a string to the standard output with no formatting.
<p>Return a non-negative number on success and EOF on error.
</p></blockquote></div>
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