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📋 NAME

dumpkeys - dump keyboard translation tables

🚀 Quick Reference

Use Case	Command	Description
Dump current keymap	dumpkeys	Dumps the current keyboard translation tables to stdout
Show kernel keyboard info	dumpkeys -i	Prints kernel keyboard driver characteristics (keycode range, actions, etc.)
Show long info with action symbols	dumpkeys -l	Prints short info plus list of action symbols and numeric values
Dump numeric (hex) format	dumpkeys -n	Bypasses symbolic conversion; prints action codes in hexadecimal
Dump full canonical table	dumpkeys -f	Outputs key bindings in canonical form skipping shorthand heuristics
Dump function key strings only	dumpkeys -t	Prints only function key string definitions
Dump key bindings only	dumpkeys -k	Prints only key bindings (no function strings)
Dump compose key combinations	dumpkeys -d	Prints only compose key combinations (kernel compose support required)
Specify charset for output	dumpkeys -c iso-8859-1	Interprets character codes according to specified charset (default iso-8859-1)
Show help	dumpkeys -h	Prints version number and short usage message

📝 SYNOPSIS

dumpkeys [ -h --help -i --short-info -l -s --long-info -n --numeric -f --full-table -1 --separate-lines -Sshape --shape=shape -t --funcs-only -k --keys-only -d --compose-only -ccharset --charset=charset -v --verbose -V --version ]

📖 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
    🔢 Tells what values can be used after the keycode keyword in keytable files. See keymaps(5) for more information.
  • Number of actions bindable to a key
    🔢 Tells how many different actions a single key can output using various modifier keys. For example, if the value is 16, you can define up to 16 different actions to a key combined with modifiers.
  • Ranges of action codes supported by the kernel
    🔢 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 (the vv's in keycode xx = vv vv vv vv). This list can be used to determine if the kernel supports all symbols loadkeys(1) knows, or if there are actions with no symbolic name.
  • Number of function keys supported by kernel
    🔢 Tells the number of action codes that can be used to output strings of characters. These are traditionally bound to function and editing keys to send escape sequences, but can be redefined to send command lines, email addresses, etc.

  • 🔤 Function strings

    You can see your current function key definitions with the command:

    dumpkeys --funcs-only

• -l -s --long-info
  📚 Prints a long information listing. The output is the same as with --short-info appended with the list of action symbols supported by loadkeys(1) and dumpkeys(1), along with the symbols' numeric values.
• -n --numeric
  🔢 Causes dumpkeys to by-pass the conversion of action code values to symbolic notation and print them in hexadecimal format instead.
• -f --full-table
  📊 Makes dumpkeys skip all the short-hand heuristics (see keymaps(5)) and output the key bindings in canonical form. First a keymaps line describing modifier combinations is printed, then for each key a row with a column for each modifier combination. This format is useful for post-processing.
• -Sshape --shape=shape
  🔧 (No description provided in original)
• -t --funcs-only
  🔤 Prints only the function key string definitions. Normally dumpkeys prints both key bindings and string definitions.
• -k --keys-only
  🔑 Prints only the key bindings. Normally dumpkeys prints both key bindings and string definitions.
• -d --compose-only
  🔀 Prints only the compose key combinations. This option is available only if your kernel has compose key support.
• -ccharset --charset=charset
  🌐 Instructs dumpkeys to interpret character code values according to the specified character set. Valid values for charset are currently iso-8859-X where X is a digit 1-9. Default is iso-8859-1. This produces an output line charset "iso-8859-X" telling loadkeys how to interpret the keymap.
• -v --verbose
  🗣️ (No description provided in original)
• -V --version
  ℹ️ Prints version number and exits.

📁 FILES

• /usr/share/keymaps — 📂 The recommended directory for keytable files.

📚 SEE ALSO

• loadkeys(1)
• keymaps(5)

📋 NAME 🚀 Quick Reference 📝 SYNOPSIS 📖 DESCRIPTION ⚙️ OPTIONS 📁 FILES 📚 SEE ALSO