delete button in console

[William A. Mahaffey III]

On 12/29/15 11:14, Polytropon wrote:
> On Tue, 29 Dec 2015 01:48:49 -0800, Sergei G wrote:
>> When I ssh to a FreeBSD machine and press 'Delete' button in csh prompt
>> I get character '~' printed on screen.  Backspace works just fine.
>>
>> I think even an actual console behaves the same way.
>>
>> Is there a way to "map" the Delete button to work appropriately? Would
>> it be my SSH client application or FreeBSD itself?
> This is a thing that can be configured for the shell. I assume
> you're using FreeBSD's default dialog shell, the C shell. In
> this case, add to ~/.cshrc:
>
> 	bindkey ^? delete-char		# for console
> 	bindkey ^[[3~ delete-char	# for xterm
>
> Or to /etc/csh.cshrc, if you want to make it a global setting.
>
> You can check the success with the "stty -a" command.


Is this keyboard dependent ? My keyboard apparently sends '^?' for its 
backspace key. When I try the above, then 'stty -a', I see no setting.


[wam at devbox, pre, 2:48:10pm] 2029 % bindkey '^?' delete-char

     .
     .
     .

     <try 'vi' on an ASCII file, BS key still doesn't work> ....

     .
     .
     .

[wam at devbox, pre, 2:48:10pm] 2031 % stty -a
speed 38400 baud; 52 rows; 166 columns;
lflags: icanon isig iexten echo echoe echok echoke -echonl echoctl
         -echoprt -altwerase -noflsh -tostop -flusho -pendin -nokerninfo
         -extproc
iflags: -istrip icrnl -inlcr -igncr ixon -ixoff -ixany imaxbel -ignbrk
         brkint -inpck ignpar -parmrk
oflags: opost onlcr -ocrnl tab3 -onocr -onlret
cflags: cread cs8 -parenb -parodd hupcl -clocal -cstopb -crtscts -dsrflow
         -dtrflow -mdmbuf
cchars: discard = ^O; dsusp = ^Y; eof = ^D; eol = <undef>;
         eol2 = <undef>; erase = ^H; erase2 = ^H; intr = ^C; kill = ^U;
         lnext = ^V; min = 1; quit = ^\; reprint = ^R; start = ^Q;
         status = ^@; stop = ^S; susp = ^Z; time = 0; werase = ^W;
[wam at devbox, pre, 2:48:13pm] 2032 % set
_       stty -a

addsuffix
anyerror
argv    ()
autoexpand
autolist        ambiguous
autorehash
csubstnonl
cwd     /home/wam/V8/Cnx/test/junk/cart/unstaggered/bfc/pre
cwdcmd  echo -n "^[]2;${HOST}:$cwd^G^[]1;${HOST}^G"
dirstack        (/home/wam/V8/Cnx/test/junk/cart/unstaggered/bfc/pre 
/home/wam/V8/Cnx/test/junk/cart/unstaggered/bfc/utils)
dirw    /home/wam/V8/Cnx/test/junk/cart/unstaggered
dunique
echo_style      both
edit
euid    1110
euser   wam
fignore (.o .obj .u)
filec
gid     1110
group   unknown
histdup prev
history 1000
home    /home/wam
killring        30
loginsh
mail    /var/mail/wam
owd     /home/wam/V8/Cnx/test/junk/cart/unstaggered/bfc/utils
path    (/sbin /bin /usr/sbin /usr/bin /usr/games /usr/local/sbin 
/usr/local/bin /home/wam/bin)
prompt  %B%{\e]2\;%n@%m %l %~%#^g\e]1\;%n@%m^g\r%}[%n@%m, %c, %p] ! %% %b
prompt2 %R?
prompt3 CORRECT>%R (y|n|e|a)?
savehist        (300 merge)
shell   /bin/tcsh
shlvl   1
status  0
tcsh    6.18.01
term    xterm
time    (10  whew !!!! that took (%U cpu + %S sys) sec., %E elapsed time 
tot, %P CPU efficiency
         (%X text, %D data, %M max) KB, (%I+%O) io, %F pfs + %W swaps)
tty     pts/2
uid     1110
user    wam
version tcsh 6.18.01 (Astron) 2012-02-14 (x86_64-amd-FreeBSD) options 
wide,nls,dl,al,kan,sm,rh,color,filec
[wam at devbox, pre, 2:50:11pm] 2033 % uname -a
FreeBSD devbox 9.3-RELEASE-p30 FreeBSD 9.3-RELEASE-p30 #0: Mon Nov 2 
10:11:50 UTC 2015 
root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC amd64
[wam at devbox, pre, 2:50:24pm] 2034 %

I am actually using rxvt, logged into another box, but it apparently 
advertises as xterm ....

-- 

	William A. Mahaffey III

  ----------------------------------------------------------------------

	"The M1 Garand is without doubt the finest implement of war
	 ever devised by man."
                            -- Gen. George S. Patton Jr.