Differences between version 3 and predecessor to the previous major change of ascii(7).
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| Newer page: | version 3 | Last edited on Saturday, August 30, 2003 8:37:37 pm | by JohnMcPherson | Revert |
| Older page: | version 1 | Last edited on Monday, June 3, 2002 11:58:26 pm | by perry | Revert |
@@ -1,54 +1,103 @@
-ASCII
!!!ASCII
-NAME
-DESCRIPTION
-HISTORY
-SEE ALSO
+
----
!!NAME
ascii - the ASCII character set encoded in octal, decimal, and hexadecimal
!!DESCRIPTION
-ASCII is the American Standard Code for Information
-
-
-
-
+ASCII is the American Standard Code for Information Interchange. It is a 7-bit code. Many 8-bit codes (such as ISO 8859-1, the Linux default character set) contain ASCII as their lower half. The international counterpart of ASCII is known as ISO 646.
-The following table contains the 128 ASCII
-
+The following table contains the 128 ASCII characters.
+
+
+C program '\X' escapes are noted.
+
+|Oct|Dec|Hex|Char|Oct|Dec|Hex|Char
+|000||00|NUL '\'|100|64|40|@
+|001|1|01|SOH|101|65|41|A
+|002|2|02|STX|102|66|42|B
+|003|3|03|ETX|103|67|43|C
+|004|4|04|EOT|104|68|44|D
+|005|5|05|ENQ|105|69|45|E
+|006|6|06|ACK|106|70|46|F
+|007|7|07|BEL '\a'|107|71|47|G
+|010|8|08|BS '\b'|110|72|48|H
+|011|9|09|HT '\t'|111|73|49|I
+|012|10|0A|LF '\n'|112|74|4A|J
+|013|11|0B|VT '\v'|113|75|4B|K
+|014|12|0C|FF '\f'|114|76|4C|L
+|015|13|0D|CR '\r'|115|77|4D|M
+|016|14|0E|SO|116|78|4E|N
+|017|15|0F|SI|117|79|4F|O
+|020|16|10|DLE|120|80|50|P
+|021|17|11|DC1|121|81|51|Q
+|022|18|12|DC2|122|82|52|R
+|023|19|13|DC3|123|83|53|S
+|024|20|14|DC4|124|84|54|T
+|025|21|15|NAK|125|85|55|U
+|026|22|16|SYN|126|86|56|V
+|027|23|17|ETB|127|87|57|W
+|030|24|18|CAN|130|88|58|X
+|031|25|19|EM|131|89|59|Y
+|032|26|1A|SUB|132|90|5A|Z
+|033|27|1B|ESC|133|91|5B|[
+|034|28|1C|FS|134|92|5C|\ '\\'
+|035|29|1D|GS|135|93|5D|]
+|036|30|1E|RS|136|94|5E|^
+|037|31|1F|US|137|95|5F|_
+|040|32|20|SPACE|140|96|60|`
+|041|33|21|!|141|97|61|a
+|042|34|22|"|142|98|62|b
+|043|35|23|#|143|99|63|c
+|044|36|24|$|144|100|64|d
+|045|37|25|%|145|101|65|e
+|046|38|26|&|146|102|66|f
+|047|39|27|'|147|103|67|g
+|050|40|28|(|150|104|68|h
+|051|41|29|)|151|105|69|i
+|052|42|2A|*|152|106|6A|j
+|053|43|2B|+|153|107|6B|k
+|054|44|2C|,|154|108|6C|l
+|055|45|2D|-|155|109|6D|m
+|056|46|2E|.|156|110|6E|n
+|057|47|2F|/|157|111|6F|o
+|060|48|30||160|112|70|p
+|061|49|31|1|161|113|71|q
+|062|50|32|2|162|114|72|r
+|063|51|33|3|163|115|73|s
+|064|52|34|4|164|116|74|t
+|065|53|35|5|165|117|75|u
+|066|54|36|6|166|118|76| v
+|067|55|37|7|167|119|77|w
+|070|56|38|8|170|120|78|x
+|071|57|39|9|171|121|79|y
+|072|58|3A|:|172|122|7A|z
+|073|59|3B|;|173|123|7B|{
+|074|60|3C|<|174|124|7C| \|
+|075|61|3D|=|175|125|7D|}
+|076|62|3E|>|176|126|7E|~
+|077|63|3F|?|177|127|7F|DEL
-C program 'X' escapes are noted.
!!HISTORY
-An __ascii__ manual page appeared in Version 7 AT__
+An __ascii__ manual page appeared in Version 7 AT&T UNIX.
-On older terminals, the underscore code is displayed as a
-
-
-
+On older terminals, the underscore code is displayed as a left arrow, called backarrow, the caret is displayed as an up-arrow and the vertical bar has a hole in the middle.
-Uppercase and lowercase characters differ by just one bit
-
-
-
-
-
+Uppercase and lowercase characters differ by just one bit and the ASCII character 2 differs from the double quote by just one bit, too. That made it much easier to encode characters mechanically or with a non-microcontroller-based electronic keyboard and that pairing was found on old teletypes.
-The ASCII standard was published by the United States of
-
+The ASCII standard was published by the United States of America Standards Institute (USASI) in 1968.
!!SEE ALSO
-
-__
iso_8859_1__
(7), __
iso_8859_15__
(7),
-__
iso_8859_7__
(7)
+iso_8859_1(7), iso_8859_15(7), iso_8859_7(7)
----
+See also the utf8(7) man page.
