dumpkeys
dump keyboard translation tables
see also :
loadkeys
Synopsis
dumpkeys
[ -hilfn -ccharset
--help --short-info
--long-info --numeric
--full-table
--funcs-only --keys-only
--compose-only
--charset=charset ]
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description
dumpkeys
writes, to the standard output, the current contents of the
keyboard driver’s translation tables, in the format
specified by keymaps(5).
Using the
various options, the format of the output can be controlled
and also other information from the kernel and the programs
dumpkeys(1) and loadkeys(1) can be
obtained.
options
-h
--help
Prints the program’s
version number and a short usage message to the
program’s standard error output and exits.
-i
--short-info
Prints some characteristics of
the kernel’s keyboard driver. The items shown are:
Keycode range
supported by the kernel
This tells what
values can be used after the keycode keyword in
keytable files. See keymaps(5) for more information
and the syntax of these files.
Number of
actions bindable to a key
This tells how
many different actions a single key can output using various
modifier keys. If the value is 16 for example, you can
define up to 16 different actions to a key combined with
modifiers. When the value is 16, the kernel probably knows
about four modifier keys, which you can press in different
combinations with the key to access all the bound
actions.
Ranges of
action codes supported by the kernel
This item
contains a list of action code ranges in hexadecimal
notation. These are the values that can be used in the right
hand side of a key definition, ie. the vv’s in
a line
keycode
xx = vv vv vv vv
(see
keymaps(5) for more information about the format of
key definition lines). dumpkeys(1) and
loadkeys(1) support a symbolic notation, which is
preferable to the numeric one, as the action codes may vary
from kernel to kernel while the symbolic names usually
remain the same. However, the list of action code ranges can
be used to determine, if the kernel actually supports all
the symbols loadkeys(1) knows, or are there maybe
some actions supported by the kernel that have no symbolic
name in your loadkeys(1) program. To see this, you
compare the range list with the action symbol list, see
option --long-info below.
Number of
function keys supported by kernel
This tells the
number of action codes that can be used to output strings of
characters. These action codes are traditionally bound to
the various function and editing keys of the keyboard and
are defined to send standard escape sequences. However, you
can redefine these to send common command lines, email
addresses or whatever you like. Especially if the number of
this item is greater than the number of function and editing
keys in your keyboard, you may have some "spare"
action codes that you can bind to AltGr-letter combinations,
for example, to send some useful strings. See
loadkeys(1) for more details.
Function
strings
You can see you
current function key definitions with the command
dumpkeys
--funcs-only
-l
--long-info
This option instructs
dumpkeys to print a long information listing. The
output is the same as with the --short-info appended
with the list of action symbols supported by
loadkeys(1) and dumpkeys(1), along with the
symbols’ numeric values.
-n
--numeric
This option causes
dumpkeys to by-pass the conversion of action code
values to symbolic notation and to print the in hexadecimal
format instead.
-f
--full-table
This makes dumpkeys skip
all the short-hand heuristics (see keymaps(5)) and
output the key bindings in the canonical form. First a
keymaps line describing the currently defined modifier
combinations is printed. Then for each key a row with a
column for each modifier combination is printed. For
example, if the current keymap in use uses seven modifiers,
every row will have seven action code columns. This format
can be useful for example to programs that post-process the
output of dumpkeys.
--funcs-only
When this option is given,
dumpkeys prints only the function key string
definitions. Normally dumpkeys prints both the key
bindings and the string definitions.
--keys-only
When this option is given,
dumpkeys prints only the key bindings. Normally
dumpkeys prints both the key bindings and the string
definitions.
--compose-only
When this option is given,
dumpkeys prints only the compose key combinations.
This option is available only if your kernel has compose key
support.
-ccharset
--charset=charset
This instructs dumpkeys
to interpret character code values according to the
specified character set. This affects only the translation
of character code values to symbolic names. Valid values for
charset currently are iso-8859-X, Where X is a
digit in 1-9. If no charset is specified,
iso-8859-1 is used as a default. This option produces
an output line ’charset "iso-8859-X"’,
telling loadkeys how to interpret the keymap. (For example,
"division" is 0xf7 in iso-8859-1 but 0xba in
iso-8859-8.)
files
/usr/share/keymaps
recommended directory for keytable files
see also
loadkeys ,
keymaps