Main index

Introducing UNIX and Linux


The Computing Environment

Overview
What is a Computer?
Hardware
      Processors
      Input Devices
      Output Devices
Software
      Input and Characters
            Control Characters
      Application Programs
            Programming Languages
      The Operating System
      System Administration
History of UNIX and Linux
Conventions
Summary

Control characters

Code ctrl-key Name Description
0 ^@ NUL null
1 ^A SOH start of heading
2 ^B STX start of text
3 ^C ETX end of text
4 ^D EOT end of transmission
5 ^E ENQ enquiry
6 ^F ACK acknowledge
7 ^G BEL bell
8 ^H BS backspace
9 ^I HT horizontal tab
10 ^J NL newline (linefeed)
11 ^K VT vertical tab
12 ^L NP new page (formfeed)
13 ^M CR carriage return
14 ^N SO shift out
15 ^O SI shift in
16 ^P DLE data link escape
17 ^Q DC1 device control 1
18 ^R DC2 device control 2
19 ^S DC3 device control 3
20 ^T DC4 device control 4
21 ^U NAK negative acknowledgement
22 ^V SYN synchronous idle
23 ^W ETB end of transmission block
24 ^X CAN cancel
25 ^Y EM end of medium
26 ^Z SUB substitute
27 ^[ ESC escape
28 ^\ FS file separator
29 ^] GS group separator
30 ^^ RS record separator
31 ^_ US unit separator
127 ^? DEL delete

Copyright © 2002 Mike Joy, Stephen Jarvis and Michael Luck