I am accessing a linux box via ssh using putty.Key combinations work fine when I'm not running screen.However, Ctrl key combinations do not work under a screen session.In fact, a Ctrl-any key is registered the same as the same key without the Ctrl combination.I know this by typing Ctrl-V and then a Ctrl-key combination to figure out what characters are sent to my terminal. For example, Ctrl- (left arrow) gives me ^[[D on screen (screen256-color term).  gives me the same result.Weird thing is that Alt-key combinations work fine.In particular, I would like to get the 'forward-word' and 'backward-word' key bindings working under screen.I have tried modifying .inputrc to work with various terminals. As such, my .inputrc looks something like this:$if term=xterm    'xxx' : forward-word # xxx key gotten from Ctrl-V    'xxx' : backward-word$endif$if term=screen-256color......I have also tried various terminals by setting the TERM of my bash profile, setting TERM on .screenrc, and setting the Putty keyboard terminal mappings. The obvious ones, linux and xterm, don't work. However, I haven't tried every permutation of settings for obvious reasons.Additional info:I stand corrected, arrow key combinations are the only combinations that do not work.The distro is RHEL 6. .screenrc:term xterm # tried other terms as wellshell -$SHELL # login shell to reload configscaption string %whardstatus alwayslastline %{b kw}%H %{r}%1` %{w}| %{g}%c %{w}| %{y}%d.%m.%Y %{w}| %{g}%l %{w}| %{-b kw}%u %-Lw%{= rW}%50> %n%f %t %{-}%+Lw%<vbell offdefscrollback 5000Putty's default keyboard mode ESC [n~. Taken from the putty manual:In the default mode, labelled ESC [n~, the function keys generate sequences like ESC [11~, ESC [12~ and so on. This matches the general behaviour of Digital's terminals.Interestingly, what's actually sent by Putty (by following the first answer on https://superuser.com/questions/342848/cant-get-keyboard-to-work-correctly-in-putty), is ^[0D : left-arrow^[[D : Ctrl-{left-arrow}Since the they are different, I guess putty isn't the issue then?FWIW, I tried changing the Application Cursor key mode settings on Putty, but to no avail. I also tried using tmux, only to encounter the same issue.
How to enable Control key combinations for GNU screen on putty?
terminal;gnu screen;putty