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-r (checking read permissions) 199
radio buttons 50
ranges, in search patterns 146
read function 227
read permissions 231
readdir function 201
reading
cookies 174
directory contents 201
external files 190, 195
refused cookies 176
regex 142
See also search patterns
regular expressions 142
See also search patterns, finding, finding
and replacing
relative paths 244
remainder, of division 78
remembering data 161-176
removing
directories 206
in Unix 250
extra returns 210
files 198
in Unix 249
first item from array 93
last item in array 94
rename function 197
renaming files 197
repeating
blocks 110
certain number of times 113
for each element in array 114
if condition is false 111
strings 80
REQUEST_METHOD, environment variable 60, 224
require function 125
reset button 54
resetting forms 54
resources 253-258
learning more 257
online documentation 258
other folks’ scripts 256
Telnet programs 255
text editors 254
result, vs. return value 27
return function 123
return values
and subroutines 122
setting in subroutine 123
vs. result 27
returns, carriage
and writing to external files 193
eliminating extra 210
including in string 24
reversing contents of array 99
rm, Unix command 249
rmdir
Perl function 206
Unix command 250
root directory 243
ROWS attribute, in TEXTAREA tag (HTML) 49
running scripts 41

©Copyright 2000 by Elizabeth Castro. All rights reserved.
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This index is from my book, Perl and CGI for the World Wide Web: Visual QuickStart Guide, published by Peachpit Press.