Interrupt, kill and quit key assignments not working

[Scott G. Gallup]

I have a rp4440 server running HP-UX 11.23 64bit OS. I connect to the server with a Accuterm terminal emulator software. The system does not recognize interrupt (^U), quit (^\) or kill (^C). Does not matter if I map the control characters to keys or just type the control character - the system does not respond to the key. The erase control key (^H) does work. I have a rp4440 running HP-UX 11.11 64 bit OS which does not have this issue. All the control keys work as they should.

[James R. Ferguson]

Hi Scott:

# stty -a

...will show you what your system thinks the key sequences will do.

Regards!

...JRF...

[Tim Nelson]

Please post the output of stty command
Should look something like the below.

# stty
speed 38400 baud; evenp hupcl
intr = ^C; erase = ^H; kill = ^U;
eol2 = ^@;
susp = ^@; dsusp = ^@;
-inpck -istrip icrnl -ixany ixoff onlcr
-iexten echo echoe echok

[Scott G. Gallup]

I looked at the stty -a output from both machines and they are essentially the same. On the HP-UX 11.23 box min = 4 and time = 0 on the HP-UX 11.11 box min = 1 and time = 1. I have no idea if that is significant. I will include output from both machines.

HP-UX 11.23
speed 9600 baud; line = 0;
rows = 0; columns = 0
min = 4; time = 0;
intr = ^U; quit = ^\; erase = ^H; kill = ^C
eof = ^D; eol = ^@; eol2 ; swtch
stop = ^S; start = ^Q; susp ; dsusp
werase ; lnext
parenb -parodd cs7 -cstopb hupcl -cread -clocal -loblk -crts
-ignbrk brkint ignpar -parmrk -inpck istrip -inlcr -igncr icrnl -iuclc
ixon -ixany -ixoff -imaxbel -rtsxoff -ctsxon -ienqak
isig icanon -iexten -xcase echo echoe echok -echonl -noflsh
-echoctl -echoprt -echoke -flusho -pendin
opost -olcuc onlcr -ocrnl -onocr -onlret -ofill -ofdel -tostop tab3

HP-UX 11.11
speed 9600 baud; line = 0;
rows = 0; columns = 0
min = 1; time = 1;
intr = ^U; quit = ^\; erase = ^H; kill = ^C
eof = ^D; eol = ^@; eol2 ; swtch
stop = ^S; start = ^Q; susp ; dsusp
werase ; lnext
parenb -parodd cs7 -cstopb hupcl -cread -clocal -loblk -crts
-ignbrk brkint ignpar -parmrk -inpck istrip -inlcr -igncr icrnl -iuclc
ixon -ixany -ixoff -imaxbel -rtsxoff -ctsxon -ienqak
isig icanon -iexten -xcase echo echoe echok -echonl -noflsh
-echoctl -echoprt -echoke -flusho -pendin
opost -olcuc onlcr -ocrnl -onocr -onlret -ofill -ofdel -tostop tab3

Thanks in advance for any thoughts, ideas, etc. I will assign points to all replies in a little bit.

[OldSchool · Accepted solution]

according to "man 7 termio" the
time and min settings interact, and impact keyboard buffering (among other things).

as a test, login and do

stty min 1
stty time 1

and see if the keys behave properly. If they do, add the above to the appropriate login files....(.profile, .bashrc or whatever)

[Dennis Handly]

>interrupt (^U), quit (^\) or kill (^C).

Typically ^C is interrupt and ^U is kill.
And ^D is susp.

[Scott G. Gallup]

Hi OldSchool,

I tried the test you suggested but was not successful. I am a bit mystified.