ASCII Character Set and Hexadecimal Values - Cisco
ASCII Character Set and Hexadecimal Values
Some commands described in the Cisco IOS documentation set, such as the escape-character line configuration command, require that you enter the decimal representation of an ASCII character. Other commands occasionally make use of hexadecimal (hex) representations.
Table 174 provides character code translations from the decimal numbers to their hexadecimal and ASCII equivalents. It also provides the keyword entry for each ASCII character. For example, the ASCII carriage return (CR) is decimal 13. Entering Ctrl-M at your terminal generates decimal 13, which is interpreted as a CR.
Note This document is a reference for only the standard ASCII character set. Extended ASCII character sets are not generally recommended for use in Cisco IOS commands. Extended ASCII character set references are widely available on the internet.
Table 174
ASCII Translation Table
Numeric Values
Decimal Hex
0
00
1
01
2
02
3
03
4
04
5
05
6
06
7
07
8
08
9
09
10
0A
11
0B
12
0C
ASCII Character NUL SOH STX ETX EOT ENQ ACK BEL BS HT LF VT FF
Meaning Null Start of heading Start of text Break/end of text End of transmission Enquiry Positive acknowledgment Bell Backspace Horizontal tab Line feed Vertical tab Form feed
Keyboard Entry Ctrl-@ Ctrl-A Ctrl-B Ctrl-C Ctrl-D Ctrl-E Ctrl-F Ctrl-G Ctrl-H Ctrl-I Ctrl-J Ctrl-K Ctrl-L
April 2010
Cisco IOS Configuration Fundamentals Command Reference
CF-1193
ASCII Character Set and Hexadecimal Values
Table 174
ASCII Translation Table (continued)
Numeric Values
Decimal Hex
13
0D
14
0E
15
0F
16
10
17
11
18
12
19
13
20
14
21
15
22
16
23
17
24
18
25
19
26
1A
27
1B
28
1C
29
1D
30
1E
31
1F
32
20
33
21
34
22
35
23
36
24
37
25
38
26
39
27
40
28
41
29
42
2A
43
2B
44
2C
45
2D
ASCII Character CR
SO SI
DLE DC1 DC2 DC3 DC4 NAK SYN ETB CAN EM SUB ESC FS GS RS US SP ! " # $ % & ' ( ) * + , -
Meaning
Keyboard Entry
Carriage return (in the CLI, equivalent to the Enter or Return key)
Ctrl-M
Shift out
Ctrl-N
Shift in/XON (resume output)
Ctrl-O
Data link escape
Ctrl-P
Device control character 1 Ctrl-Q
Device control character 2 Ctrl-R
Device control character 3 Ctrl-S
Device control character 4 Ctrl-T
Negative acknowledgment Ctrl-U
Synchronous idle
Ctrl-V
End of transmission block Ctrl-W
Cancel
Ctrl-X
End of medium
Ctrl-Y
Substitute/end of file
Ctrl-Z
Escape
Ctrl-[
File separator
Ctrl-\
Group separator
Ctrl-]
Record separator
Ctrl-^
Unit separator
Ctrl-_
Space
Space
!
!
"
"
#
#
$
$
%
%
&
&
'
'
(
(
)
)
*
*
+
+
,
,
-
-
CF-1194
Cisco IOS Configuration Fundamentals Command Reference
April 2010
ASCII Character Set and Hexadecimal Values
April 2010
Table 174
ASCII Translation Table (continued)
Numeric Values
Decimal Hex
46
2E
47
2F
48
30
49
31
50
32
51
33
52
34
53
35
54
36
55
37
56
38
57
39
58
3A
59
3B
60
3C
61
3D
62
3E
63
3F
64
40
65
41
66
42
67
43
68
44
69
45
70
46
71
47
72
48
73
49
74
4A
75
4B
76
4C
77
4D
78
4E
79
4F
80
50
ASCII Character . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ A B C D E F G H I J K L M N O P
Meaning . / Zero One Two Three Four Five Six Seven Eight Nine : ; < = > ? @ A B C D E F G H I J K L M N O P
Keyboard Entry . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ? @ A B C D E F G H I J K L M N O P
Cisco IOS Configuration Fundamentals Command Reference
CF-1195
ASCII Character Set and Hexadecimal Values
Table 174
ASCII Translation Table (continued)
Numeric Values
Decimal Hex
81
51
82
52
83
53
84
54
85
55
86
56
87
57
88
58
89
59
90
5A
91
5B
92
5C
93
5D
94
5E
95
5F
96
60
97
61
98
62
99
63
100
64
101
65
102
66
103
67
104
68
105
69
106
6A
107
6B
108
6C
109
6D
110
6E
111
6F
112
70
113
71
114
72
115
73
ASCII Character Q R S T U V W X Y Z [ \ ] ^ _ ` a b c d e f g h i j k l m n o p q r s
Meaning Q R S T U V W X Y Z [ \ ] ^ _ ` a b c d e f g h i j k l m n o p q r s
CF-1196
Cisco IOS Configuration Fundamentals Command Reference
Keyboard Entry Q R S T U V W X Y Z [ \ ] ^ _ ` a b c d e f g h i j k l m n o p q r s
April 2010
ASCII Character Set and Hexadecimal Values
Table 174
ASCII Translation Table (continued)
Numeric Values
Decimal Hex
116
74
117
75
118
76
119
77
120
78
121
79
122
7A
123
7B
124
7C
125
7D
126
7E
127
7F
ASCII Character t u v w x y z { | } ~ DEL
Meaning t u v w x y z { | } Tilde Delete
Keyboard Entry t u v w x y z { | } ~ Del
April 2010
Cisco IOS Configuration Fundamentals Command Reference
CF-1197
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