I have no idea what the relevence of DGPickett's post is.
The ctrl/z is being picked up by shell before it gets to your program. In foreground ctrl/z is commonly mapped to SUSP (suspend). The program can be brought to foreground with the "fg" Shell command.
To see the mapping of the various control keys in your session:
Each and every one of these can (and often will) be disabled or changed to suit individual terminals or applications. See "man stty" for your O/S.
Many people re-map INTR to ctrl/c for consistency with MSDOS but on many terminals it is not mapped to anything by default.
Hi,
when I execute a script on unix AIX, I've got an error message:
"Execution: 85328 Signal d'alarme".
If I edit this file with "vi", I ve got the same error after a while (about 1 minute).
If I try with another user I still have the problem.
But if I rename this file, no problem.
My... (5 Replies)
Hi everyone,
Is there a variable or built in function in the Unix env. for me to obtain the name of a signal that is caught? As far as I understand only a numeric value of the signal is returned to the handler.
For example:
void handler (int signum)
{
... (2 Replies)
Hello e'bdy,
We have WebSphere MQ running on AIX 5.1
Every weekend MQ receives a kill -30 signal from some process or user and offloads a big error file. There is no way in MQ through which that process can be tracked.
Is there something which i can do on UNIX level to trap the process?
Best... (3 Replies)
Hello,
I'm doing a project of OS simulation (Process Scheduling, to be very specific). Can anyone, please, explain what exactly happens in the background when we see "Sending all processes the KILL signal...........". How is it sent to each process? Is it that something like a boolean is stored... (3 Replies)
Who can explain the meaning of the &2 &1 or @, #, etc in the script?
Is there any document which can explain the usage of these words in details?
for example:
ls /etc/sysconfig/network > /dev/null 2>&1
#@
bash, ksh and sh.
Thanks in advance for ur advice. (1 Reply)
I have a script which invoke a java program, because the program requires file as input, hence the script would sleep a X seconds then check for file existence, if the file exists then program is invoker else, keep waiting until the time is up. My problem is that if there is a way to find out if my... (1 Reply)
Hi!
I want to catch all signals that my program receives print their name and then execute the default handler.
Can you help me on that?
I've tried the following code:
#include <stdio.h>
#include <unistd.h>
#include <signal.h>
void (*hnd)(int i);
char signals =
{
"SIGHUP",... (7 Replies)
Hi all
I have Master script, Main script ,and 4 Child script.
Master.sh
#!/bin/bash
/export/home/user/Main.shMain.sh
#!/bin/bash
/export/home/user/Child1.sh &
/export/home/user/Child2.sh &
/export/home/user/Child3.sh &
/export/home/user/Child4.sh &I run only Master.sh script... (1 Reply)
A program have to receive signals and work agreed with it, but the process have to receive more than one signal when it is attending other. Those have to be queued to be attended later recived.
how can i do that?
thanks. (2 Replies)
Hello I want to know how can i use signal function in c for keyboard interrupt handling. what i exactly want is : my program is processing and if i press any key while processing , the program should call the interrupt and displays/prints that key and now goes back to processing.
I added the... (5 Replies)
Discussion started by: Jahanzeb
5 Replies
LEARN ABOUT DEBIAN
fiu-ctrl
fiu-ctrl(1) General Commands Manual fiu-ctrl(1)NAME
fiu-ctrl - a script to remote control programs using libfiu
SYNOPSIS
fiu-ctrl [options] PID [PID ...]
DESCRIPTION
fiu-ctrl is a script to enable/disable failure points in running programs that are using libfiu(3).
Programs are usually launched using fiu-run(1), which enables libfiu's remote control capabilities without the need to modify the program's
code.
For additional documentation, go to the project's website at http://blitiri.com.ar/p/libfiu.
OPTIONS -c command
Run the given libfiu remote control command before executing the program (see below for reference).
-f ctrlpath
Set the default prefix for remote control over named pipes. Defaults to "$TMPDIR/fiu-ctrl", or "/tmp/fiu-ctrl" if "$TMPDIR" is not
set, which is the usually correct for programs launched using fiu-run(1).
Remote control commands are of the form "command param1=value1,param2=value2". Valid commands are:
'enable name=NAME'
Enables the NAME failure point unconditionally.
'enable_random name=NAME,probability=P'
Enables the NAME failure point with a probability of P.
'disable name=NAME'
Disables the NAME failure point.
All of the enable* commands can also optionally take failnum and failinfo parameters, analogous to the ones taken by the C functions.
EXAMPLES
The following command will tell the process running with PID 12345 to enable the failure point posix/io/read with a 25% of probability to
fail, and the failure point libc/mm/malloc with a 5% of probability to fail:
fiu-ctrl -c 'enable_random name=posix/io/*,probability=0.25'
-c 'enable_random name=libc/mm/*,probability=0.05' 12345
And the following will tell the same process to disable the previously enabled failure point posix/io/read:
fiu-ctrl -c 'disable name=posix/io/read' 12345
SEE ALSO libfiu(3), fiu-run(1).
BUGS
If you want to report bugs, or have any questions or comments, just let me know at albertito@blitiri.com.ar. For more information about
libfiu, you can go to http://blitiri.com.ar/p/libfiu.
16/Jun/2009 fiu-ctrl(1)