File: perlcheat.html

package info (click to toggle)
perl-doc-html 5.26.0-4
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 39,400 kB
  • sloc: xml: 36; makefile: 7
file content (502 lines) | stat: -rw-r--r-- 28,432 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
  <title>perlcheat - perldoc.perl.org</title>
  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
  <meta http-equiv="Content-Language" content="en-gb">
  <link rel="search" type="application/opensearchdescription+xml" title="Search perldoc.perl.org" href="/static/search.xml"/>
  <link href="static/css-20100830.css" rel="stylesheet" rev="stylesheet" type="text/css" media="screen">
  <link href="static/exploreperl.css" rel="stylesheet" rev="stylesheet" type="text/css">
</head>

<body onLoad="perldoc.startup();" onPageShow="if (event.persisted) perldoc.startup();">
    <div id="page">
      
      <div id="header">
	<div id="homepage_link">
	  <a href="index.html"></a>
	</div>
	<div id="strapline">
	  Perl Programming Documentation
	</div>
	<div id="download_link" class="download">
	  <a href="http://www.perl.org/get.html">Download Perl</a>
	</div>
	<div id="explore_link" class="download">
	  <a id="explore_anchor" href="#">Explore</a>
	</div>
      </div>
      
      <div id="body">
        <div id="left_column">
          <div class="side_group">
            
	    <div class="side_panel doc_panel">
              <p>Manual</p>
              <ul>
                <li><a href="index-overview.html">Overview</a>
                <li><a href="index-tutorials.html">Tutorials</a>
                <li><a href="index-faq.html">FAQs</a>
                <li><a href="index-history.html">History / Changes</a>
                <li><a href="index-licence.html">License</a>
              </ul>
            </div>
            <div class="side_panel doc_panel">
              <p>Reference</p>
              <ul>
                <li><a href="index-language.html">Language</a>
                <li><a href="index-functions.html">Functions</a>
                <li><a href="perlop.html">Operators</a>
                <li><a href="perlvar.html">Special Variables</a>
                <li><a href="index-pragmas.html">Pragmas</a>
                <li><a href="index-utilities.html">Utilities</a>
                <li><a href="index-internals.html">Internals</a>
                <li><a href="index-platforms.html">Platform Specific</a>
              </ul>
            </div>
            <div class="side_panel doc_panel">
              <p>Modules</p>
              <ul>
		<li>
		
                
                  
		    
		  
		
                  
		    
		  
		
                  
		    
		  
		
                  
		    
		  
		
                  
		    
		  
		
                  
		    
		  
		
                  
		    
		  
		
                  
		    
		  
		
                  
		    
		  
		
                  
		
                  
		
                  
		    
		  
		
                  
		    
		  
		
                  
		    
		  
		
                  
		    
		  
		
                  
		    
		  
		
                  
		
                  
		
                  
		    
		  
		
                  
		    
		  
		
                  
		    
		  
		
                  
		
                  
		
                  
		    
		  
		
                  
		
                  
		
		
                    <a href="index-modules-A.html">A</a>
                    
                      
                        &bull;
                      
                    
                
                    <a href="index-modules-B.html">B</a>
                    
                      
                        &bull;
                      
                    
                
                    <a href="index-modules-C.html">C</a>
                    
                      
                        &bull;
                      
                    
                
                    <a href="index-modules-D.html">D</a>
                    
                      
                        &bull;
                      
                    
                
                    <a href="index-modules-E.html">E</a>
                    
                      
                        <li>
                      
                    
                
                    <a href="index-modules-F.html">F</a>
                    
                      
                        &bull;
                      
                    
                
                    <a href="index-modules-G.html">G</a>
                    
                      
                        &bull;
                      
                    
                
                    <a href="index-modules-H.html">H</a>
                    
                      
                        &bull;
                      
                    
                
                    <a href="index-modules-I.html">I</a>
                    
                      
                        &bull;
                      
                    
                
                    <a href="index-modules-L.html">L</a>
                    
                      
                        <li>
                      
                    
                
                    <a href="index-modules-M.html">M</a>
                    
                      
                        &bull;
                      
                    
                
                    <a href="index-modules-N.html">N</a>
                    
                      
                        &bull;
                      
                    
                
                    <a href="index-modules-O.html">O</a>
                    
                      
                        &bull;
                      
                    
                
                    <a href="index-modules-P.html">P</a>
                    
                      
                        &bull;
                      
                    
                
                    <a href="index-modules-S.html">S</a>
                    
                      
                        <li>
                      
                    
                
                    <a href="index-modules-T.html">T</a>
                    
                      
                        &bull;
                      
                    
                
                    <a href="index-modules-U.html">U</a>
                    
                      
                        &bull;
                      
                    
                
                    <a href="index-modules-X.html">X</a>
                    
                
              </ul>
            </div>
            
	      <div class="side_panel doc_panel">
		<p>Tools</p>
		<ul>
		  <li><a href="preferences.html">Preferences</a>
		</ul>
	      </div>
            
          </div>
        </div>
        <div id="centre_column">
          <div id="content_header">
            <div id="title_bar">
              <div id="page_name">
                <h1>perlcheat</h1>
              </div>
              <div id="perl_version">
                Perl 5 version 26.0 documentation
              </div>
              <div class="page_links" id="page_links_top">
                <a href="#" onClick="toolbar.goToTop();return false;">Go to top</a>
		
              </div>
	      <div class="page_links" id="page_links_bottom">
		
                  <a href="#" id="page_index_toggle">Show page index</a> &bull;
		
                <a href="#" id="recent_pages_toggle">Show recent pages</a>		
	      </div>
	      <div id="search_form">
		<form action="search.html" method="GET" id="search">
		  <input type="text" name="q" id="search_box" alt="Search">
		</form>
	      </div>
            </div>
            <div id="breadcrumbs">
                
    <a href="index.html">Home</a> &gt;
    
      
        <a href="index-tutorials.html">Tutorials</a> &gt;
      
    
    perlcheat
  

            </div>
          </div>
          <div id="content_body">
	    <!--[if lt IE 7]>
 <div class="noscript">
   <p>
     <strong>It looks like you're using Internet Explorer 6. This is a very old
     browser which does not offer full support for modern websites.</strong>
   </p>
   <p>
     Unfortunately this means that this website will not work on
     your computer.
   </p>
   <p>
     Don't miss out though! To view the site (and get a better experience from
     many other websites), simply upgrade to
     <a href="http://www.microsoft.com/windows/Internet-explorer/default.aspx">Internet
Explorer 8</a>
     or download an alternative browser such as
     <a href="http://www.mozilla.com/en-US/firefox/firefox.html">Firefox</a>,
     <a href="http://www.apple.com/safari/download/">Safari</a>, or
     <a href="http://www.google.co.uk/chrome">Google Chrome</a>.
   </p>
   <p>
     All of these browsers are free. If you're using a PC at work, you may
     need to contact your IT administrator.
   </p>
 </div>
<![endif]-->
	    <noscript>
	      <div class="noscript">
	      <p>
                <strong>Please note: Many features of this site require JavaScript. You appear to have JavaScript disabled,
	        or are running a non-JavaScript capable web browser.</strong>
	      </p>
	      <p>
		To get the best experience, please enable JavaScript or download a modern web browser such as <a href="http://www.microsoft.com/windows/Internet-explorer/default.aspx">Internet Explorer 8</a>, <a href="http://www.mozilla.com/en-US/firefox/firefox.html">Firefox</a>, <a href="http://www.apple.com/safari/download/">Safari</a>, or <a href="http://www.google.co.uk/chrome">Google Chrome</a>.
              </p>
	      </div>
	    </noscript>

	    <div id="recent_pages" class="hud_container">
	      <div id="recent_pages_header" class="hud_header">
		<div id="recent_pages_close" class="hud_close"><a href="#" onClick="recentPages.hide();return false;"></a></div>
		<div id="recent_pages_title" class="hud_title"><span class="hud_span_top">Recently read</span></div>
		<div id="recent_pages_topright" class="hud_topright"></div>
	      </div>
	      <div id="recent_pages_content" class="hud_content">
	      </div>
	      <div id="recent_pages_footer" class="hud_footer">
		<div id="recent_pages_bottomleft" class="hud_bottomleft"></div>
		<div id="recent_pages_bottom" class="hud_bottom"><span class="hud_span_bottom"></span></div>
		<div id="recent_pages_resize" class="hud_resize"></div>
	      </div>
	    </div>
  
	    <div id="from_search"></div>
            <h1>perlcheat</h1>


  <!--    -->
<ul><li><a href="#NAME">NAME</a><li><a href="#DESCRIPTION">DESCRIPTION</a><ul><li><a href="#The-sheet">The sheet</a></ul><li><a href="#ACKNOWLEDGEMENTS">ACKNOWLEDGEMENTS</a><li><a href="#AUTHOR">AUTHOR</a><li><a href="#SEE-ALSO">SEE ALSO</a></ul><a name="NAME"></a><h1>NAME</h1>
<p>perlcheat - Perl 5 Cheat Sheet</p>
<a name="DESCRIPTION"></a><h1>DESCRIPTION</h1>
<p>This 'cheat sheet' is a handy reference, meant for beginning Perl
programmers. Not everything is mentioned, but 195 features may
already be overwhelming.</p>
<a name="The-sheet"></a><h2>The sheet</h2>
<pre class="verbatim"><ol><li>  <span class="w">CONTEXTS</span>  <span class="w">SIGILS</span>  <a class="l_k" href="functions/ref.html">ref</a>        <span class="w">ARRAYS</span>        <span class="w">HASHES</span></li><li>  <span class="w">void</span>      <span class="i">$scalar</span> <span class="w">SCALAR</span>     <span class="i">@array</span>        %<span class="w">hash</span></li><li>  <a class="l_k" href="functions/scalar.html">scalar</a>    <span class="i">@array</span>  <span class="w">ARRAY</span>      <span class="i">@array</span>[<span class="n">0</span><span class="cm">,</span> <span class="n">2</span>]  <span class="i">@hash</span>{<span class="q">&#39;a&#39;</span><span class="cm">,</span> <span class="q">&#39;b&#39;</span>}</li><li>  <span class="w">list</span>      <span class="i">%hash</span>   <span class="w">HASH</span>       <span class="i">$array</span>[<span class="n">0</span>]     <span class="i">$hash</span>{<span class="q">&#39;a&#39;</span>}</li><li><a name="CODE"></a>            &amp;sub    <span class="m">CODE</span></li><li>            *<a class="l_k" href="functions/glob.html">glob</a>   <span class="w">GLOB</span>       <span class="w">SCALAR</span> <span class="w">VALUES</span></li><li>                    <span class="w">FORMAT</span>     <span class="w">number</span><span class="cm">,</span> <span class="w">string</span><span class="cm">,</span> <a class="l_k" href="functions/ref.html">ref</a><span class="cm">,</span> <a class="l_k" href="functions/glob.html">glob</a><span class="cm">,</span> <a class="l_k" href="functions/undef.html">undef</a></li><li>  <span class="w">REFERENCES</span></li><li>  \      <span class="w">reference</span>       <span class="i">$$foo</span>[<span class="n">1</span>]       <span class="w">aka</span> <span class="i">$foo</span>-&gt;[<span class="n">1</span>]</li><li>  <span class="i">$@</span>%<span class="i">&amp;*</span>  <span class="w">dereference</span>     <span class="i">$$foo</span>{<span class="w">bar</span>}     <span class="w">aka</span> <span class="i">$foo</span>-&gt;{<span class="w">bar</span>}</li><li>  []     <span class="w">anon</span>. <span class="w">arrayref</span>  <span class="i">$</span>{<span class="i">$$foo</span>[<span class="n">1</span>]}[<span class="n">2</span>] <span class="w">aka</span> <span class="i">$foo</span>-&gt;[<span class="n">1</span>]-&gt;[<span class="n">2</span>]</li><li>  {}     <span class="w">anon</span>. <span class="w">hashref</span>   <span class="i">$</span>{<span class="i">$$foo</span>[<span class="n">1</span>]}[<span class="n">2</span>] <span class="w">aka</span> <span class="i">$foo</span>-&gt;[<span class="n">1</span>][<span class="n">2</span>]</li><li>  \<span class="s">(</span><span class="s">)</span>    <span class="w">list</span> <span class="w">of</span> <span class="w">refs</span></li><li>                         <span class="w">SYNTAX</span></li><li>  <span class="w">OPERATOR</span> <span class="w">PRECEDENCE</span>    <a class="l_k" href="functions/foreach.html">foreach</a> <span class="s">(</span><span class="w">LIST</span><span class="s">)</span> <span class="s">{</span> <span class="s">}</span>     <a class="l_k" href="functions/for.html">for</a> <span class="s">(</span><span class="w">a</span><span class="sc">;</span><span class="w">b</span><span class="sc">;</span><span class="w">c</span><span class="s">)</span> <span class="s">{</span> <span class="s">}</span></li><li>  <span class="i">-&gt;                     while</span>   <span class="s">(</span><span class="w">e</span><span class="s">)</span> { }        <a class="l_k" href="functions/until.html">until</a> <span class="s">(</span><span class="w">e</span><span class="s">)</span>   <span class="s">{</span> <span class="s">}</span></li><li>  ++ --                  <a class="l_k" href="functions/if.html">if</a>      <span class="s">(</span><span class="w">e</span><span class="s">)</span> <span class="s">{</span> <span class="s">}</span> <a class="l_k" href="functions/elsif.html">elsif</a> <span class="s">(</span><span class="w">e</span><span class="s">)</span> <span class="s">{</span> <span class="s">}</span> <a class="l_k" href="functions/else.html">else</a> <span class="s">{</span> <span class="s">}</span></li><li>  <span class="i">**</span>                     <a class="l_k" href="functions/unless.html">unless</a>  <span class="s">(</span><span class="w">e</span><span class="s">)</span> <span class="s">{</span> <span class="s">}</span> <a class="l_k" href="functions/elsif.html">elsif</a> <span class="s">(</span><span class="w">e</span><span class="s">)</span> <span class="s">{</span> <span class="s">}</span> <a class="l_k" href="functions/else.html">else</a> <span class="s">{</span> <span class="s">}</span></li><li>  ! ~ \ <span class="w">u</span>+ <span class="w">u</span>-            <a class="l_k" href="functions/given.html">given</a>   <span class="s">(</span><span class="w">e</span><span class="s">)</span> <span class="s">{</span> <a class="l_k" href="functions/when.html">when</a> <span class="s">(</span><span class="w">e</span><span class="s">)</span> <span class="s">{</span><span class="s">}</span> <span class="w">default</span> <span class="s">{</span><span class="s">}</span> <span class="s">}</span></li><li>  =~ !~</li><li>  <span class="i">* /</span> % <span class="w">x</span>                 <span class="w">NUMBERS</span> <span class="w">vs</span> <span class="w">STRINGS</span>  <span class="w">FALSE</span> <span class="w">vs</span> <span class="w">TRUE</span></li><li>  + - .                   =          =        <a class="l_k" href="functions/undef.html">undef</a><span class="cm">,</span> <span class="q">&quot;&quot;</span><span class="cm">,</span> <span class="n">0</span><span class="cm">,</span> <span class="q">&quot;0&quot;</span></li><li>  &lt;&lt; &gt;&gt;                   +          .        <span class="w">anything</span> <a class="l_k" href="functions/else.html">else</a></li><li>  <span class="w">named</span> <span class="w">uops</span>              == !=      <a class="l_k" href="functions/eq.html">eq</a> <a class="l_k" href="functions/ne.html">ne</a></li><li>  <span class="q">&lt; &gt;</span> &lt;= &gt;= <a class="l_k" href="functions/lt.html">lt</a> <a class="l_k" href="functions/gt.html">gt</a> <a class="l_k" href="functions/le.html">le</a> <a class="l_k" href="functions/ge.html">ge</a>   <span class="q">&lt; &gt;</span> &lt;= &gt;=  <a class="l_k" href="functions/lt.html">lt</a> <a class="l_k" href="functions/gt.html">gt</a> <a class="l_k" href="functions/le.html">le</a> <a class="l_k" href="functions/ge.html">ge</a></li><li>  == != &lt;=&gt; <a class="l_k" href="functions/eq.html">eq</a> <a class="l_k" href="functions/ne.html">ne</a> <a class="l_k" href="functions/cmp.html">cmp</a> ~~  &lt;=&gt;        <a class="l_k" href="functions/cmp.html">cmp</a></li><li>  <span class="i">&amp;</span></li><li>  | ^             <span class="w">REGEX</span> <span class="w">MODIFIERS</span>       <span class="w">REGEX</span> <span class="w">METACHARS</span></li><li>  &amp;&amp;              <span class="q">/i case insensitive   ^      string begin</span></li><li>  <span class="q">  || /</span>/           <span class="q">/m line based ^$      $      str end (bfr \n)</span></li><li>  <span class="q">  .. ...          /s</span> . <span class="w">includes</span> \<span class="w">n</span>      +      <span class="w">one</span> <a class="l_k" href="functions/or.html">or</a> <span class="w">more</span></li><li>  ?<span class="co">:</span>              <span class="q">/x /xx</span> <span class="w">ign</span>. <span class="w">wh</span>.<span class="w">space</span>  *      <span class="w">zero</span> <a class="l_k" href="functions/or.html">or</a> <span class="w">more</span></li><li>  = += <a class="l_k" href="functions/last.html">last</a> <a class="l_k" href="functions/goto.html">goto</a>  <span class="q">/p preserve           ?      zero or one</span></li><li>  <span class="q">  , =&gt;            /</span><span class="w">a</span> <span class="w">ASCII</span>    /<span class="w">aa</span> <span class="w">safe</span>  <span class="s">{</span><span class="n">3</span><span class="cm">,</span><span class="n">7</span><span class="s">}</span>  <span class="w">repeat</span> <span class="w">in</span> <span class="w">range</span></li><li>  <span class="w">list</span> <span class="w">ops</span>        /<span class="w">l</span> <span class="w">locale</span>   /<span class="w">d</span>  <span class="w">dual</span>  |      <span class="w">alternation</span></li><li>  <a class="l_k" href="functions/not.html">not</a>             <span class="q">/u Unicode            []     character class</span></li><li>  <span class="q">  and             /</span><span class="w">e</span> <span class="w">evaluate</span> /<span class="w">ee</span> <span class="w">rpts</span>  \<span class="w">b</span>     <span class="w">boundary</span></li><li>  <a class="l_k" href="functions/or.html">or</a> <a class="l_k" href="functions/xor.html">xor</a>          <span class="q">/g global             \z     string end</span></li><li>                  <span class="q">                  /o</span> <span class="w">compile</span> <span class="w">pat</span> <span class="w">once</span>   <span class="s">(</span><span class="s">)</span>     <span class="w">capture</span></li><li>  <span class="w">DEBUG</span>                                 <span class="s">(</span><span class="q">?:p)  no capture</span></li><li>  <span class="q">  -MO=Deparse     REGEX CHARCLASSES     (?</span><span class="c">#t)  comment</span></li><li>  -<span class="w">MO</span>=<span class="w">Terse</span>       .   <span class="s">[</span>^\<span class="w">n</span><span class="s">]</span>             <span class="s">(</span><span class="q">?=p)  ZW pos ahead</span></li><li>  <span class="q">  -D##            \s  whitespace        (?</span>!<span class="w">p</span><span class="s">)</span>  <span class="w">ZW</span> <span class="w">neg</span> <span class="w">ahead</span></li><li>  -d<span class="co">:</span><span class="w">Trace</span>        \<span class="w">w</span>  <span class="w">word</span> <span class="w">chars</span>        <span class="s">(</span><span class="q">?&lt;=p) ZW pos behind \K</span></li><li>                  <span class="q">                  \d  digits            (?</span>&lt;!<span class="w">p</span><span class="s">)</span> <span class="w">ZW</span> <span class="w">neg</span> <span class="w">behind</span></li><li>  <span class="w">CONFIGURATION</span>   \<span class="w">pP</span> <span class="w">named</span> <span class="w">property</span>    <span class="s">(</span><span class="q">?&gt;p)  no backtrack</span></li><li>  <span class="q">  perl -V:ivsize  \h  horiz.wh.space    (?</span>|<span class="w">p</span>|<span class="w">p</span><span class="s">)</span><span class="w">branch</span> <a class="l_k" href="functions/reset.html">reset</a></li><li>                  \<span class="w">R</span>  <span class="w">linebreak</span>         <span class="s">(</span><span class="q">?&lt;n&gt;p)named capture</span></li><li>                  <span class="q">                  \S \W \D \H negate    \g{n}  ref to named cap</span></li><li>                                        <span class="q">                                        \K     keep left part</span></li><li>  <span class="q">  FUNCTION RETURN LISTS</span></li><li>  <span class="q">  stat      localtime    caller         SPECIAL VARIABLES</span></li><li>   <span class="q">   0 dev    0 second      0 package     $_    default variable</span></li><li>   <span class="q">   1 ino    1 minute      1 filename    $0    program name</span></li><li>   <span class="q">   2 mode   2 hour        2 line        $/    input separator</span></li><li>   <span class="q">   3 nlink  3 day         3 subroutine  $\    output separator</span></li><li>   <span class="q">   4 uid    4 month-1     4 hasargs     $|    autoflush</span></li><li>   <span class="q">   5 gid    5 year-1900   5 wantarray   $!    sys/libcall error</span></li><li>   <span class="q">   6 rdev   6 weekday     6 evaltext    $@    eval error</span></li><li>   <span class="q">   7 size   7 yearday     7 is_require  $$    process ID</span></li><li>   <span class="q">   8 atime  8 is_dst      8 hints       $.    line number</span></li><li>   <span class="q">   9 mtime                9 bitmask     @ARGV command line args</span></li><li>  <span class="q">  10 ctime               10 hinthash    @INC  include paths</span></li><li>  <span class="q">  11 blksz               3..10 only     @_    subroutine args</span></li><li>  <span class="q">  12 blcks               with EXPR      %ENV  environment</span></li></ol></pre><a name="ACKNOWLEDGEMENTS"></a><h1>ACKNOWLEDGEMENTS</h1>
<p>The first version of this document appeared on Perl Monks, where several
people had useful suggestions. Thank you, Perl Monks.</p>
<p>A special thanks to Damian Conway, who didn't only suggest important changes,
but also took the time to count the number of listed features and make a
Perl 6 version to show that Perl will stay Perl.</p>
<a name="AUTHOR"></a><h1>AUTHOR</h1>
<p>Juerd Waalboer &lt;#####@juerd.nl&gt;, with the help of many Perl Monks.</p>
<a name="SEE-ALSO"></a><h1>SEE ALSO</h1>
<ul>
<li>
<p><a href="http://perlmonks.org/?node_id=216602">http://perlmonks.org/?node_id=216602</a> - the original PM post</p>
</li>
<li>
<p><a href="http://perlmonks.org/?node_id=238031">http://perlmonks.org/?node_id=238031</a> - Damian Conway's Perl 6 version</p>
</li>
<li>
<p><a href="http://juerd.nl/site.plp/perlcheat">http://juerd.nl/site.plp/perlcheat</a> - home of the Perl Cheat Sheet</p>
</li>
</ul>




  <div id="page_index" class="hud_container">
    <div id="page_index_header" class="hud_header">
      <div id="page_index_close" class="hud_close"><a href="#" onClick="pageIndex.hide();return false;"></a></div>
      <div id="page_index_title" class="hud_title"><span class="hud_span_top">Page index</span></div>
      <div id="page_index_topright" class="hud_topright"></div>
    </div>
    <div id="page_index_content" class="hud_content">
      <ul><li><a href="#NAME">NAME</a><li><a href="#DESCRIPTION">DESCRIPTION</a><ul><li><a href="#The-sheet">The sheet</a></ul><li><a href="#ACKNOWLEDGEMENTS">ACKNOWLEDGEMENTS</a><li><a href="#AUTHOR">AUTHOR</a><li><a href="#SEE-ALSO">SEE ALSO</a></ul>
    </div>
    <div id="page_index_footer" class="hud_footer">
      <div id="page_index_bottomleft" class="hud_bottomleft"></div>
      <div id="page_index_bottom" class="hud_bottom"><span class="hud_span_bottom"></span></div>
      <div id="page_index_resize" class="hud_resize"></div>
    </div>
  </div>


	    &nbsp;
          </div>
          <div id="content_footer">
          </div>
        </div>
        <div class="clear"></div>
      </div>
      
    <div id="footer">
      <div id="footer_content">
        <div id="footer_strapline">
          perldoc.perl.org - Official documentation for the Perl programming language
        </div>
        <div id="footer_links">
          <div id="address">
            <p class="name">Contact details</p>
            <p class="address">
	      Site maintained by <a href="mailto:jj@jonallen.info">Jon Allen (JJ)</a><br>
	    </p>
            <p class="contact">
              Documentation maintained by the <a href="http://lists.cpan.org/showlist.cgi?name=perl5-porters">Perl 5 Porters</a>
            </p>
          </div>
          <ul class="f1">
            <li>Manual
              <ul class="f2">
                <li><a href="index-overview.html">Overview</a>
                <li><a href="index-tutorials.html">Tutorials</a>
                <li><a href="index-faq.html">FAQs</a>
                <li><a href="index-history.html">Changes</a>
              </ul>
            <li>Reference
              <ul class="f2">
                <li><a href="index-language.html">Language</a>
                <li><a href="index-functions.html">Functions</a>
                <li><a href="perlop.html">Operators</a>
                <li><a href="perlvar.html">Variables</a>
              </ul>
            <li>Modules
              <ul class="f2">
                <li><a href="index-modules-A.html">Modules</a>
                <li><a href="index-pragmas.html">Pragmas</a>
                <li><a href="index-utilities.html">Utilities</a>
              </ul>
            <li>Misc
              <ul class="f2">
                <li><a href="index-licence.html">License</a>
                <li><a href="index-internals.html">Internals</a>
                <li><a href="index-platforms.html">Platforms</a>
              </ul>          </ul>
          <div class="clear"></div>
        </div>
      </div>
      <div id="footer_end">
      </div>
    </div>
      
    </div>
      <script language="JavaScript" type="text/javascript" src="static/exploreperl.js"></script>
      <script language="JavaScript" src="static/combined-20100403.js" type="text/javascript"></script>
<script language="JavaScript" type="text/javascript">
  perldoc.setPath(0);
  perldoc.pageName    = 'perlcheat';
  perldoc.pageAddress = 'perlcheat.html';
  perldoc.contentPage = 1;
  explorePerl.render();
  explorePerl.addEvents('explore_anchor');
</script>
    
  </body>
</html>