In our last article we introduced you to using text in Perl. By the time we were done, there was text everywhere. But that's okay. In this tutorial we will learn to clean that text up and put it in its place. So roll up those sleeves and prepare to get organized. No more sloppy text for you!
Before we end, let's talk about ASCII characters. As you are probably aware, computers don't see text as we do. For instance, a computer sees a lowercase “u” as the number code 117 and the uppercase “U” as 85. There are 255 ASCII values, 93 of which are known as the visible characters. These are comprised of lowercase a-z, uppercase A-Z, the numbers 0-9, and the following characters: !”#$%&'()*+,-./:;<=>?@[]^_`{|}~.
Below is a table listing the decimal values:
Dec
Char
Dec
Char
Dec
Char
Dec
Char
033
!
059
;
085
U
111
o
034
"
060
<
086
V
112
p
035
#
061
=
087
W
113
q
036
$
062
>
088
X
114
r
037
%
063
?
089
Y
115
s
038
&
064
@
090
Z
116
t
039
'
065
A
091
[
117
u
040
(
066
B
092
118
v
041
)
067
C
093
]
119
w
042
*
068
D
094
^
120
x
043
+
069
E
095
_
121
y
044
,
070
F
096
`
122
z
045
-
071
G
097
a
123
{
046
.
072
H
098
b
124
|
047
/
073
I
099
c
125
}
048
0
074
J
100
d
126
~
049
1
075
K
101
e
050
2
076
L
102
f
051
3
077
M
103
g
052
4
078
N
104
h
053
5
079
O
105
i
054
6
080
P
106
j
055
7
081
Q
107
k
056
8
082
R
108
l
057
9
083
S
109
m
058
:
084
T
110
n
Well that's it for this tutorial. In our next episode we will wrap up our conversation on text in Perl, and move onto working with math and numbers.
Perl Programming 
