Keyboard interfaces:
awesome, cvlc, display, elinks, firefox, gnome3, gv, mail, mplayer, mutt,
openbox, pxboard, screen, vim, xboard, xine, xpdf, xterm, yasr, zee, zile


awesome

Window Manager Control : Mod4 is the key between Control and Alt
Mod4 + Control + r Restart awesome
Mod4 + Shift + q Quit awesome
Mod4 + r Run prompt
Mod4 + x Run Lua code prompt
Mod4 + Return Spawn terminal emulator
Mod4 + w Open main menu
Clients :
Mod4 + m Maximize client
Mod4 + n Minimize client
Mod4 + f Set client fullscreen
Mod4 + t Set client on-top
Mod4 + Shift + c Kill focused client
Mod4 + Control + n Restore client
Navigation :
Mod4 + j Focus next client
Mod4 + k Focus previous client
Mod4 + u Focus first client
Button1 on tag name View tag
Mod4 + Left View previous tag
Mod4 + Right View next tag
Mod4 + 1-9 Switch to tag 1-9
Mod4 + Control + j Focus next screen
Mod4 + Control + k Focus previous screen
Mod4 + Escape Focus previously selected tag set
Layout modification :
Mod4 + Shift + j Switch client with next client
Mod4 + Shift + k Switch client with previous client
Mod4 + o Send client to next screen.
Mod4 + h Decrease master width factor by 5%
Mod4 + l Increase master width factor by 5%
Mod4 + Shift + h Increase number of master windows by 1
Mod4 + Shift + l Decrease number of master windows by 1.
Mod4 + Ctrl + h Increase number of columns for non-master windows by 1
Mod4 + Ctrl + l Decrease number of columns for non-master windows by 1
Mod4 + Space Switch to next layout
Mod4 + Shift + Space Switch to previous layout
Mod4 + Control + Space Toggle client floating status
Mod4 + Control + Return Swap focused client with master
Mod4 + Control + 1-9 Toggle tag view
Mod4 + Shift + 1-9 Tag client with a tag
Mod4+Shift+Control + 1-9 Toggle tag on client

cvlc

Audio PlayBack :
M Mute On/Off
Ctrl + Up Volume Up
Ctrl + Down Volume Down
Ctrl + H Subtitle Delay Up
Ctrl + J Subtitle Delay Down
General Shortcut Keys :
T Show time Played/time left
Ctrl + Q Quit program
F Full screen mode
Ctrl + P Playlist
Ctrl + M Messages
Ctrl + I Stream and Media info
Ctrl + A Open capture device
Ctrl + W Streaming and Transport Wizard
Ctrl + X / Ctrl + Q Exit
Ctrl + V VLM control
Ctrl + G Extended GUI
Ctrl + B Bookmarks
Ctrl + S Preferences
F Fullscreen
+ Play faster
- Play slower
Video Playback Shortcut Keys :
Space Play/pause
S Stop
N Next entry in playlist
F Full screen
Ctrl + O Quick open file
Ctrl + O Open directory
Ctrl + D Open disk
Ctrl + N Open network stream
N Next item
P Previous item
Shift + Left Very Short Backwards jump
Shift + Right Very Short Forward jump
Alt + Left Backwards jump
Alt + Right Forward jump
Ctrl + Left Medium Backwards jump
Ctrl + Right Medium Forward jump
Alt + Ctrl + Left Long Backwards jump
Alt + Ctrl + Right Long Forward jump
Enter Active
DVD PlayBack :
Ctrl + M Go to DVD menu
Ctrl + P Selected previous DVD title
Ctrl + F Selected next DVD title
Ctrl + U Selected previous DVD chapter
Ctrl + D Selected Next DVD Chapter

display

The File Menu :
Ctrl + O Open an image from a file
Space Display the next image
Backspace Display the previous image
Ctrl + S Save the image to a file
Ctrl + P Print the image to a PostScript-capable printer
Ctrl + D Delete an image file
Ctrl + N create a New blank canvas
Ctrl + Q Quit
The Edit Menu :
Ctrl + Z Undo the last image transformation
Ctrl + R Redo the last image transformation
Ctrl + X Cut a region of the image
Ctrl + C Copy a region of the image
Ctrl + V Paste a region to the image
The View Menu :
< Half size
> Double size
% Re-size
Ctrl + A Apply these changes as the "original" version
@ Refresh
The Transform Menu :
c Cut out a rectangular region
[ Chop the image
h Flop the image horizontally
v Flip the image vertically
/ Rotate Right 90 degrees clockwise
\ Rotate Left 90 degrees anti-clockwise
r Roll the image
t Trim the image edges
The Enhance Menu :
Shift + H Vary the hue
Shift + L Vary the colour brightness
Shift + S Vary the colour-saturation
Shift + G Gamma-correct the image
Shift + C Sharpen the contrast
Shift + Z Dull the contrast
= Equalise
Shift + N Normalise
Shift + ~ Negate the colours
. Convert to greyscale
Shift + # Set the maximum number of colours
The Effects Menu :
F2 Reduce the speckles
F3 Eliminate peak noise
F4 Add noise
F5 Sharpen
F7 Threshold the image
F8 Detect edges
F9 Emboss
F10 Displace pixels by a random amount
F11 Shade an image with a distant light-source
F13 Lighten or darken edges to create a 3D-effect
F14 Segment the image by colour
The F/X Menu :
Meta + S Swirl the pixels around the centre
Meta + I Implode the pixels around the centre
Meta + W Alter the image along a sine-wave
The Image Edit Menu :
Alt + A Annotate the image with text
Alt + D Draw on the image
Alt + P Edit a pixel-colour
Alt + M Edit the Matte information
Alt + V Composite the image with another
Alt + B Add a Border
Alt + F Add an ornamental Frame
Alt + Shift + ! Add a comment
Ctrl + A Apply image-processing to a region of interest
The Miscellany Menu :
Shift + ? Display information about the image
Shift + + Map the zoom image window
Shift + P Preview an image enhancement or effect
F1 About display
1 to 9 Change the magnification
Arrow-keys Move by one pixel, if "map the magnify window" = 2
Alt + Arrow-keys Trim one pixel off any side of the image

elinks

The default bindings are shown below. Any bindings in ~/.elinks/elinks.conf will override these.
There are also EDIT keys and MENU keys; see man elinkskeys

Space Move downwards by a page (move-page-down)
# Search link text by typing ahead (search-typeahead)
% Toggle usage of document specific colors (toggle-document-colors)
* Toggle displaying of links to images (toggle-display-images)
, Open a Lua console (lua-console)
. Toggle displaying of links numbers (toggle-numbered-links)
/ Search for a text pattern (search)
: Enter ex-mode (command line) (exmode)
< Previous tab (tab-prev)
Alt-< Move the current tab to the left (tab-move-left)
= Show information about the current page (document-info)
> Next tab (tab-next)
Alt-> Move the current tab to the right (tab-move-right)
? Search backwards for a text pattern (search-back)
A Add a new bookmark using current link (add-bookmark-link)
Ctrl-A Move to the start of the document (move-document-start)
Ctrl-B Move upwards by a page (move-page-up)
C Open cache manager (cache-manager)
D Open download manager (download-manager)
E Open "Go to URL" dialog box containing the current link URL (goto-url-current-link)
Ctrl-E Move to the end of the document (move-document-end)
F Open form history manager (formhist-manager)
Ctrl-F Move downwards by a page (move-page-down)
G Open "Go to URL" dialog box containing the current URL (goto-url-current)
H Go to the homepage (goto-url-home)
K Open cookie manager (cookie-manager)
Ctrl-K Reload cookies file (cookies-load)
L Open the link context menu (link-menu)
Ctrl-L Redraw the terminal (redraw)
N Find the previous occurrence of the current search text (find-next-back)
Ctrl-N Scroll down (scroll-down)
Ctrl-P Scroll up (scroll-up)
Q Quit without confirmation (really-quit)
Ctrl-R Reload the current page (reload)
T Open the current link in a new tab in the background (open-link-in-new-tab-in-background)
W Toggle wrapping of text (toggle-wrap-text)
[ Scroll left (scroll-left)
' Go at a specified mark (mark-goto)
\ Toggle rendering page as HTML / plain text (toggle-html-plain)
] Scroll right (scroll-right)
a Add a new bookmark (add-bookmark)
b Move upwards by a page (move-page-up)
c Close tab (tab-close)
d Download the current link (link-download)
e Open the tab menu (tab-menu)
f Maximize the current frame (frame-maximize)
g Open "Go to URL" dialog box (goto-url)
h Open history manager (history-manager)
k Open keybinding manager (keybinding-manager)
l Jump to link (jump-to-link)
m Set a mark (mark-set)
n Find the next occurrence of the current search text (find-next)
o Open options manager (options-manager)
q Open a quit confirmation dialog box (quit)
r Attempt to resume download of the current link (link-download-resume)
s Open bookmark manager (bookmark-manager)
t Open a new tab (open-new-tab)
u Go forward in history (history-move-forward)
v View the current image (view-image)
x Follow the current link, forcing reload of the target (link-follow-reload)
z Abort connection (abort-connection)
{ Scroll left (scroll-left)
| Show information about the current page protocol headers (header-info)
} Scroll right (scroll-right)
Backspace Backspace the last entered digit of the current prefix (backspace-prefix)
Delete Scroll down (scroll-down)
Down Move to the next link (move-link-next)
End Move to the end of the document (move-document-end)
Enter Follow the current link (link-follow)
Ctrl-Enter Follow the current link, forcing reload of the target (link-follow-reload)
Escape Activate the menu (menu)
F10 Open the File menu (file-menu)
F9 Activate the menu (menu)
Home Move to the start of the document (move-document-start)
Insert Scroll up (scroll-up)
Ctrl-Insert Copy text to clipboard (copy-clipboard)
Left Return to the previous document in history (history-move-back)
PageDown Move downwards by a page (move-page-down)
PageUp Move upwards by a page (move-page-up)
Right Follow the current link (link-follow)
Ctrl-Right Follow the current link, forcing reload of the target (link-follow-reload)
Tab Move to the next frame (frame-next)
Alt-Tab Move to the previous frame (frame-prev)
Shift-Tab Move to the previous frame (frame-prev)
Up Move to the previous link (move-link-prev)

firefox

support.mozilla.org
Alt-Left or Ctrl-[ Back
Alt-Right or Ctrl-] Forward
Alt-Home Home
Ctrl-o Open file
Ctrl-r Reload
Ctrl-Shift-r Reload cache
Esc Stop
End Go to bottom of page
Home Go to top of page
Ctrl-p Print
Ctrl-s Save
Ctrl-+ Zoom in
Ctrl-- Zoom out
Ctrl-0 Zoom reset
Ctrl-f Find
Ctrl-g Find next
Ctrl-Shift-g Find previous
Ctrl-w Close tab
Ctrl-PageUp Move one tab to the left
Ctrl-PageDown Move one tab to the right
Ctrl-Shift-P New private window
Ctrl-h History
Ctrl-Alt-Delete Clear recent history
Ctrl-u View page source
Ctrl-i Page information
F11 Toggle full screen
Ctrl-/ Toggle add-on bar
F7 Toggle caret browsing

gnome3

  a11y.html.en
  a11y-mag.html.en
  a11y-right-click.html.en
  mouse-mousekeys.html.en
  mouse.html.en
  keyboard-key-menu.html.en
  keyboard-nav.html
  shell-keyboard-shortcuts.html.en


gv

a Toggle antialiasing on and off
o Open a new file
q Quit gv
r Toggle gv's resizing behaviour
i Respect/Ignore document structuring
w Watch file / Don't watch file
s Save the marked pages
Ctrl + s Save the current file
p Print the marked pages
Ctrl + p Print the current file
P Switches to presentation mode by forking a new GNU gv process
Ctrl + L or . Reload the current page
Ctrl + . Reopen the current file
m Mark the current page
n Unmark the current page
z append current coordinate to a file given by the 'GV.saveposFilename' resource
7 Orientation portrait
8 Orientation landscape
9 Orientation upside-down
0 Orientation seascape
+ Scale up
- Scale down
ArrowKeys Scroll in the direction of the Arrow
b/f, or PageUp/PageDown Jump -/+ one page
Insert/Delete Jump -/+ five pages
Home/End Jump to first/last page
Keypad 0-9 Highlight a page number
Keypad - Highlight previous page number
Keypad + Highlight next page number
Keypad Enter Jump to highlighted page
Ctrl + Enter or Shift + Enter Scroll columns up
Enter Scroll columns down

mail

t [message list] type message(s)
more [message list] read message(s), through the $PAGER
n goto and type next message
e [message list] edit message(s)
f [message list] give head lines of message(s)
d [message list] delete message(s)
s [message list] <file> append message(s) to file
u [message list] undelete message(s)
R [message list] reply to message sender(s)
r [message list] reply to message sender(s) and all recipients
p [message list] print message list
pre [message list] make messages go back to /var/mail
m <recipient list> mail to specific recipient(s)
q quit, saving unresolved messages in mbox
x quit, do not remove system mailbox
h print out active message headers
! shell escape
| [msglist] command pipe message(s) to shell command
pi [msglist] command pipe message(s) to shell command
cd [directory] chdir to directory or home if none given
fi <file> switch to file (%=system inbox, %user=user's system inbox)
+ searches in your folder directory for the file
set variable[=value] set Mail variable

A [message list] consists of integers, ranges of same, :status, /subject, or user names separated by spaces. If omitted, Mail uses the current message. The pipe command doesn't accept user names or subject message list, since that might conflict with the command string.

A <recipient list> consists of recipient addresses or aliases separated by spaces. Aliases are defined in .mailrc in your home directory.

<file> is a full or relative pathname, +folder, % (system inbox), %user (specified user's system inbox), # (previous file), & (mbox file), or an expression understood by ${SHELL:-/bin/sh} -c 'echo ...'


mplayer

Subtitles :
v Toggle subtitle Visibility
j Cycle through the available subtitles
y and g Step forward/backward in the subtitle list
F Toggle displaying "Forced subtitles"
a Toggle subtitle Alignment: top/middle/bottom
x and z Adjust subtitle delay by +/- 0.1 seconds
r and t Move subtitles up/down
Audio:
# Cycle through available audio tracks (DVD only)
+ and - Adjust audio delay by +/- 0.1 seconds
/ and *, or 0 and 9 Decrease/increase volume
( and ) Adjust audio balance in favor of left/right channel
m Mute sound
Keyboard Control :
Left and Right Seek backward/forward 10 seconds
Up and Down Seek forward/backward 1 minute
PageUp and PageDown Seek forward/backward 10 minutes
[ and ] Decrease/increase current playback speed by 10%
{ and } Halve/double current playback speed
backspace Reset playback speed to normal
< and > Go backward/forward in the playlist
Enter Go forward in the playlist, even over the end
Home and End next/previous playtree entry in the parent list
s (-vf screenshot only) Take a screenshot
S (-vf screenshot only) Start/stop taking screenshots
p and Spacebar Pause (pressing again unpauses)
. Pause and Step forward (any other key unpauses)
q / ESC Stop playing and quit

mutt

Entry-based menus :
j or Down move to the next entry
k or Up move to the previous entry
z or PageDown go to the next page
Z or PageUp go to the previous page
= or Home jump to the first entry
* or End jump to the last entry
q exit the current menu
? list all keybindings for the current menu
Page-based menus :
J or Return scroll down one line
Backspace scroll up one line
K or Space or PageDown move to the next page
- or PageUp move to the previous page
Home move to the top
End move to the bottom
Message index keys :
c change to a different mailbox
Esc c change to a folder in read-only mode
C copy the current message to another mailbox
Esc C decode a message and copy it to a folder
Esc s decode a message and save it to a folder
D delete messages matching a pattern
d delete the current message
F mark as important
l show messages matching a pattern
N mark message as new
o change the current sort method
O reverse sort the mailbox
q save changes and exit
s save-message
T tag messages matching a pattern
t toggle the tag on a message
Esc t toggle tag on entire message thread
U undelete messages matching a pattern
u undelete-message
v view-attachments
x abort changes and exit
Return display-message
Tab jump to the next new or unread message
@ show the author's full e-mail address
$ save changes to mailbox
/ search
Esc / search-reverse
^L clear and redraw the screen
^T untag messages matching a pattern

See: /usr/share/doc/mutt/html-org/gettingstarted.html
blog.bartbania.com/raspberry_pi/consolify-your-gmail-with-mutt


openbox

Alt-F4 Close the active window
Alt-Space Show the client menu for the active window
Alt-Tab Activate the last window that was in use on the desktop
Alt-Shift-Tab Cycle backward through the windows on the desktop, lowering the active window
Alt-Escape Cycle forwards through the windows on the desktop, lowering the active window
Windows-d Hide all windows to show the desktop
Windows-e Run the Konqueror file manager (an example of running a program with a key binding)
Alt-Scroll Change desktops forward and backward
Windows-F1 Jump to the first desktop
Windows-F2 Jump to the second desktop
Windows-F3 Jump to the third desktop
Windows-F4 Jump to the fourth desktop
Ctrl-Alt-Left Open the desktop switching dialog to go to the desktop to the left of the current one
Ctrl-Alt-Right Open the desktop switching dialog to go to the desktop to the right of the current one
Shift-Alt-Left Open the desktop switching dialog to go to the desktop to the left of the current one, bringing the active window with you
Shift-Alt-Right Open the desktop switching dialog to go to the desktop to the right of the current one, bringing the active window with you
Ctrl-Alt-Up Open the desktop switching dialog to go to the desktop above the current one (Only useful if you use a pager to set up a desktop layout with multiple rows)
Ctrl-Alt-Down Open the desktop switching dialog to go to the desktop below the current one (Only useful if you use a pager to set up a desktop layout with multiple rows)
Shift-Alt-Up Open the desktop switching dialog to go to the desktop above the current one, bringing the active window with you (Only useful if you use a pager to set up a desktop layout with multiple rows)
Shift-Alt-Down Open the desktop switching dialog to go to the desktop below the current one, bringing the active window with you (Only useful if you use a pager to set up a desktop layout with multiple rows)
Alt-Button1 Move the window under the mouse
Alt-Button3 Resize the window under the mouse, by moving the edge that the mouse is nearest to. Or use Alt-Button3 in the corner of a window to resize that corner.
Button2 Open a menu listing all windows on all desktops
Button3 Open a menu for launching applications (You should customize this menu to your liking)

pxboard

Ctrl-W machine has White
Ctrl-B machine has Black
F2 Flip board
Ctrl-A Analysis mode   (first you must choose an Engine with the menu)
Alt-Left Back
Alt-Right Forward
Alt-Home Start of game
Alt-End End of game
Ctrl-S Save game
Shift-Ctrl-S Save position
Ctrl-O Load game
Shift-Ctrl-O Load position
Ctrl-Q Quit

screen

Here several common terms get specialised meanings: display, terminal, region, screen, focus, window
    Each display (a console or xterm) can be split into several regions
    The focus can then be switched from region to region.
    The region which currently has focus is called the screen.
    You can create up to ten windows, where each window runs a shell.
    Each region can display one of the windows.

You can then work within a window, including copy and paste, and there's some system stuff.
All the C-a lowercase-letter commands (except a, h and v) also work if Ctrl remains down when the letter is pressed.
See man screen and also man byobu.

C-a S(split) Split the current region horizontally into two new ones
C-a |(split -v) Split the current region vertically into two new ones
C-a tab(focus) Switch the input focus to the next region
C-a Q(only) Delete all regions but the current one
C-a X(remove) Kill the current region

Up to ten windows can be opened by C-a c   and each region can display a window.

C-a '(select) Prompt for a window name or number to switch to
C-a "(windowlist -b) Present a list of all windows for selection
C-a 0
C-a 9
C-a -
(select 0)
(select 9)
(select -)
Switch the screen (the currently-focussed region)
to window number 0-9, or to the blank window
C-a C-a(other) Toggle to the window displayed previously (the command char twice)
C-a A(title) Allow the user to enter a name for the current window
C-a c(screen) Create a new window with a shell, and switch to that window
C-a i(info) Show information about the current window
C-a k(kill) Destroy the current window
C-a n(next) Switch to the next window. (C-a Space also works)
C-a N(number) Show the number (and title) of the current window
C-a p(prev) Switch to the previous window
C-a w(windows) Show a list of windows

You then work within a window:

C-a a(meta) Send the command character (C-a) to window. See escape command
C-a b(break) Send a break to window
C-a B(pow_break) Reopen the terminal line and send a break
C-a C(clear) Clear the screen (the current region)
C-a d(detach) Detach screen from this terminal
C-a D(pow_detach) Detach and logout
C-a f(flow) Toggle flow on, off or auto
C-a F(fit) Resize the window to the current region size
C-a C-g(vbell) Toggle the visual-bell mode
C-a h(hardcopy) Write a hardcopy of the current window to the file "hardcopy.n"
C-a H(log) Begins/ends logging of the current window to the file "screenlog.n"
C-a l(redisplay) Fully refresh current window
C-a L(login) Toggle this windows login slot. (Only if screen is configured to update utmp)
C-a m(lastmsg) Repeat the last message displayed in the message line
C-a M(monitor) Toggle monitoring of the current window (C-a backspace and C-a h also work)
C-a q(xon) Send a control-q to the current window
C-a r(wrap) Toggle the current window's line-wrap setting (turn automatic margins on/off)
C-a s(xoff) Send a control-s to the current window
C-a C-v(digraph) Enter a digraph
C-a _(silence) Start/stop monitoring the current window for inactivity

You can do copy-and-paste :

C-a [(copy) Enter copy/scrollback mode, which allows you to copy text from the current window and its history into the paste buffer.   It uses vi-like keybindings, including numbers like 5j or 3e
h, j, k, l move the cursor line by line or column by column
0 move to the leftmost column
^ and $ move to the first or last non-whitespace on the line
H, M and L move to the start of the top, center or bottom line of the window
+ and - positions one line up and down
G moves to the specified absolute line (default: end of buffer)
| moves to the specified absolute column
w, b, e move the cursor word by word
B, E move the cursor WORD by WORD (as in vi)
C-u and C-d scroll the display up/down by the specified amount of lines while preserving the cursor position (default: half a screen)
C-b and C-f scroll the display up/down a full screen
g moves to the beginning of the buffer
% jumps to the specified percentage of the buffer
The copy range is set by setting two marks; the marked text will be highlighted.
Press Space to set the first and second mark respectively
Y and y used to mark one whole line, or from start of line
W marks exactly one word
C-a ](paste) Write the contents of the paste buffer to the stdin queue of the current window
C-a {(history) Copy a previous command-line
C-a }(history) Paste that previous command-line
C-a >(writebuf) Write paste buffer to a file
C-a <(readbuf) Reads the screen-exchange file into the paste buffer
C-a =(removebuf) Removes the file used by C-a > and C-a <

And some system-wide stuff :

C-a t(time) Show system information
C-a v(version) Display the version and compilation date
C-a W(width) Toggle 80/132 columns
C-a x(lockscreen) Lock this terminal
C-a z(suspend) Suspend screen (your system must support BSD-style job-control)
C-a Z(reset) Reset the virtual terminal to its "power-on" values
C-a .(dumptermcap) Write out a ".termcap" file
C-a ?(help) Show key bindings
C-a \(quit) Kill all windows and terminate screen
C-a :(colon) (or C-a ESC or C-a C-[)   Enter command mode, see man screen  eg: ^a:resize +4
C-a ,(license) Shows where screen comes from, where it went to and why you can use it
C-a *(displays) Show a listing of all currently attached displays

vim

vimdoc.sourceforge.net/htmldoc/windows.html#windows
vimdoc.sourceforge.net/htmldoc/windows.html#opening-window

Ctrl-w s:[N]sp Split horizontally, giving two viewports in the same file (new window N high)
:[N]sp filename Split window in two horizontally, and load a different file
Ctrl-w v:[N]va Split vertically, giving two viewports in the same file (new window N wide)
:[N]va filename Split current window vertically, and load a different file
Ctrl-w n:[N]new filename Create a new window and start editing a file in it
:vnew filename Like :new, but split vertically
Ctrl-w o:on Make the current window the only one; all others are written and closed
Ctrl-w j Move to the window below the current one
Ctrl-w k Move to the window above the current one
Ctrl-w h Move to the window left of the current one
Ctrl-w l Move to the window right of the current one
Ctrl-w + Increase current window size by 1
Ctrl-w - Decrease current window size by 1

xboard

Ctrl-N New Game
Alt-v New Variant (eg: chess960...)
Ctrl-o Load Game from a PGN file
Ctrl-O Load Position from a FEN file
PageDown Next Position
PageUp Previous Position
Ctrl-s Save Game (appending it to a PGN file)
Ctrl-S Save Position (in a FEN file)
Ctrl-q Exit from xboard
Ctrl-e Edit Game
Ctrl-E Edit Position
Home Revert to the most recently shelved variation
End Truncate Game (discards all moves beyond current position)
Alt-LeftArrow Backward
Alt-RightArrow Forward
Alt-Home Back to Start
Alt-End Forward to End
F2 Flip View
Alt-h Show (or Hide) Move History
Alt-e Show (or Hide) Evaluation Graph
Ctrl-w Machine plays White
Ctrl-b Machine plays Black
Ctrl-t Two Machines play each other
Ctrl-a Analysis Mode
Ctrl-g Analyse Game
Pause Pause
F1 Manual Page of xboard

xine

Subtitles :
. (period)   and   , (comma) Next/Previous subtitle channel
f fullscreen mode
F xinerama fullscreen mode,
G Hide all GUI windows (except the video window)
w hide video output window
Audio :
+ and - Next/Previous audio channel
Ctrl-m Mute/Unmute audio
V and v Increment and decrement audio volume
m press if video lags behind audio
n press if video runs ahead of audio
Home reset audio/video synchronisation
Keyboard Control :
Left and Right Seek backward/forward 1 minute
Ctrl-0, Ctrl-1, Ctrl-2, ... Ctrl-9 Seek to 0%, 10%, 20%, ... 90%
68/ Seek to 68%
Up and Down Increment / Decrement playback speed (but mutes the audio)
Ctrl-i Display stream information using OSD
S Stop playback
Spacebar Pause (pressing again unpauses)
q Stop playing and quit

xpdf

o Open a new PDF file via a file requester
r Reload the current PDF file. Note that xpdf will reload the file automatically (on a page change or redraw) if it has changed since it was last loaded
Ctrl + L Redraw the current page
Ctrl + W Close the current window
f or Ctrl + F Find a text string
Ctrl + G Find next occurrence
Ctrl + P Print
n Move to the next page. Scrolls to the top of the page, unless scroll lock is turned on
p Move to the previous page. Scrolls to the top of the page, unless scroll lock is turned on
Spacebar or PageDown Scroll down on the current page; if already at bottom, move to next page
Backspace or PageUp Scroll up on the current page; if already at top, move to previous page
v Move forward along the history path
b Move backward along the history path
Home Scroll to top of current page
End Scroll to bottom of current page
Ctrl + Home Scroll to first page of document
Ctrl + End Scroll to last page of document
ArrowKeys Scroll the current page
g Activate the page number text field ("goto page")
O Set the zoom factor to 125% (ready for increment and decrement)
+ Zoom in (increment the zoom factor by 1)
- Zoom out (decrement the zoom factor by 1)
z Set the zoom factor to 'page' (fit page to window)
w Set the zoom factor to 'width' (fit page width to window)
h Set the zoom factor to 'height' (fit page height to window)
Alt + F Toggle full-screen mode
q Quit xpdf

xterm

Ctrl + Button3 Font-size menu
Shift + KeyPadPlus Larger font
Shift + KeyPadMinus Smaller font
Shift + PageUp Scroll back
Shift + PageDown Scroll forward
Alt + Return Toggle fullscreen mode

See also   /etc/X11/app-defaults/XTerm


yasr

I personally suggest sticking to Review Mode, and configuring Ctrl-Y as your Toggle review mode key.   This works well on small keyboards, and avoids conflict with applications (such as screen) that use the Alt and Ctrl keys.
In ~/.yasr.conf that would be:   0x19:toggle review mode

Review Mode :   
Space  Say review cursor position
^  Move to first character on the line, and say word
$  Move to last character on the line, and say word
b  Say previous character
c  Say this character
d  Say next character
e  Read from cursor to bottom of screen
f  Search for text on the screen
<  Search from cursor to top of screen, using the previously-entered search string
>  Search from cursor to bottom of screen, using the previously-entered search string
l  Say current line
t  Read from top to cursor
w  Read entire screen
z  Move to beginning of previous word and say it
x  Move to beginning of next word and say it
UpArrow  Move up a line and read the line
DownArrow  Move down a line and read the line
LeftArrow  Move back one character and say it
RightArrow  Move ahead one character and say it
(  Go to previous paragraph
)  Go to next paragraph
Alt-i  Reinitialize the synthesizer
` (backquote)  Read the ASCII value of the current character
Ctrl-y  Truncate speech, and toggle yasr review mode

zee

Ctrl-c edit-copy
Ctrl-x edit-cut
 Deleteedit-delete-next-character
Ctrl-?Backspaceedit-delete-previous-character
 Ctrl-Deleteedit-delete-word
Ctrl-Alt-?Ctrl-Backspaceedit-delete-word-backward
Ctrl-Alt-dedit-delete-horizontal-space
Ctrl-fedit-find
Ctrl-Alt-fedit-find-backward
Alt-Tabedit-indent
Tabedit-indent-relative
Ctrl-Returnedit-insert-newline (bug)
Returnedit-insert-newline-and-indent
Ctrl-Alt-qedit-insert-quoted
Ctrl-vedit-paste
Ctrl-redit-replace
Ctrl-@edit-select-toggle
Ctrl-Alt-sedit-shell-command
Ctrl-zedit-undo
Ctrl-Alt-xexecute-command
Ctrl-qfile-quit
Ctrl-sfile-save
Ctrl-Alt-zfile-suspend
Alt-Returnmacro-play (bug)
Ctrl-Endmove-end-file
Endmove-end-line
Ctrl-Alt-cmove-goto-column
Ctrl-Alt-gmove-goto-line
 Rightmove-next-character
 Downmove-next-line
 PageDownmove-next-page
Alt-]move-next-paragraph (bug)
 Ctrl-Rightmove-next-word
 Leftmove-previous-character
 Upmove-previous-line
 PageUpmove-previous-page
Alt-[move-previous-paragraph (bug)
 Ctrl-Leftmove-previous-word
 Ctrl-Homemove-start-file
 Homemove-start-line
Ctrl-lview-refresh

See:
github.com/rrthomas/zee/blob/master/src/bind.lua
luarocks.org/repositories/rocks/index.html#zee
github.com/rrthomas/zee/blob/master/src/cua_bindings.lua
Before nov2012 the keybindings were different


zile

Zile is a lightweight Emacs clone that provides a subset of the functionality, for basic editing.   It does not support utf8 characters.   See also: EmacsNewbieKeyReference,  or emacspeak,  or jed,  or alias emacs='emacs -nw'

File-Menu operations:
C-x C-fFind a file (and give it a new buffer)
C-x C-sSave the file
C-x iInsert a file
C-x C-cQuit Zile
C-x C-bList buffers (C-x 1 to get rid of the list)
C-x bSwitch to a buffer
C-x sSave some buffers
C-gQuit a partially-entered command
C-/Undo (or C-_)
You can give a command a repeat count by typing C-u and then the digits, before you type the command...
Moving around:
C-vMove forward one screenful
ESC vMove backward one screenful
C-lRedisplay, moving the text round the cursor to the center of the screen.
C-l C-lRedisplay, moving the text round the cursor to the top of the screen.
C-fMove forward a character
C-bMove backward a character
ESC fMove forward a word
ESC bMove backward a word
C-aMove to beginning of line
C-eMove to end of line
C-nMove to next line
C-pMove to previous line
ESC g gGo to a line
C-x C-xExchange Cursor and Mark
ESC <Move to the top of the buffer
ESC >Move to the end of the buffer
C-sSearch
Deleting:
BackspaceDelete the character before the cursor
C-dDelete the next character after the cursor
Killing and Yanking:
ESC BackspaceKill the word before the cursor (can be yanked)
ESC dKill the next word after the cursor
C-kKill from the cursor to end of line
ESC kKill to the end of the current sentence
C-wKill the whole region
C-yYank the killed text back
Shell Commands:
C-u ESC !Insert command output at current point
C-SpaceSelect a region; Set a mark, then move...
C-u ESC |Pipe the region through a command
Multiple Windows:
C-x 2Split the screen into two windows
C-x oMove the cursor into the other window
C-x 1Delete all but the one current window
Help:
C-h k C-pHelp on the C-p command (C-x 1 to remove the help window)