topic Re: ctrl-C does not work (stty seems OK!) in Operating System - HP-UX

ctrl-C does not work (stty seems OK!)

Derko Drukker — Wed, 30 Mar 2005 05:45:17 GMT

Dear Listeners,

I have 2 HP9000/D220 systems running hpux 11.00
stty -a output (identical on both systems):
speed 9600 baud; line = 0;
rows = 24; columns = 80
min = 0; time = 0;
intr = ^C; quit = ^\; erase = ^H; kill = ^U
eof = ^D; eol = ^@; eol2 = ^@; swtch = ^@
stop = ^S; start = ^Q; susp = ^Z; dsusp = ^@
werase = ^@; lnext = ^@
parenb -parodd cs8 -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

ctrl-C works on system A, but not on system B
Is behaviour of ctrl-C defined anywhere else ?

Derko

Re: ctrl-C does not work (stty seems OK!)

Peter Godron — Wed, 30 Mar 2005 06:21:39 GMT

Derko,
1. is the def for intr Cntrl-C not ^C
2. have you any trap set
3. is the isig the same on both system
4. are you using ssh?
Regards

Re: ctrl-C does not work (stty seems OK!)

Derko Drukker — Wed, 30 Mar 2005 06:31:07 GMT

Yes,

It turned out a trap was set for INT.

It works OK now on both systems !

Derko

Re: ctrl-C does not work (stty seems OK!)

Donald O'Brien — Wed, 17 Aug 2005 16:14:09 GMT

How can you tell if this trap is set? I'm seeing this same problem now between two machines. The traps seem to be identical in both /etc/profile and ~/.profile repective on each system.

Thank you.

Re: ctrl-C does not work (stty seems OK!)

Bill Hassell — Wed, 17 Aug 2005 20:30:52 GMT

Just type the command: trap

All traps that have been set in the current environment will be listed, something like this:

$ trap "echo bye bye;exit" 1 2 3 15

$ trap
trap -- 'echo bye bye;exit' TERM
trap -- 'echo bye bye;exit' QUIT
trap -- 'echo bye bye;exit' INT
trap -- 'echo bye bye;exit' HUP