signal script?

Login or Register to Ask a Question and Join Our Community

signal script?

Tags

Login to Discuss or Reply to this Discussion in Our Community

Top Forums Shell Programming and Scripting signal script?

07-17-2006

Registered User

89, 0

Join Date: Mar 2006

Last Activity: 16 November 2008, 8:20 PM EST

Posts: 89

Thanks Given: 0

Thanked 0 Times in 0 Posts

signal script?

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 java program is held up somehow? In this situation, my script would just wait forever for the program to return, what should I do when this occur? Thanks

mpang_

View Public Profile for mpang_

Find all posts by mpang_

07-18-2006

Registered User

360, 9

Join Date: Jun 2006

Last Activity: 10 December 2011, 9:33 AM EST

Posts: 360

Thanks Given: 0

Thanked 9 Times in 8 Posts

may be this will help you

https://www.unix.com/unix-for-dummies-questions-and-answers/28027-inactive-session.html

You can also try to send SIGHUP to the java program or signal 0 to check wehether the program is still running

Hitori

View Public Profile for Hitori

Find all posts by Hitori

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Send ctrl-C signal using bash script.

declare -a array=( "LLC-load-misses" "LLC-loads" "LLC-store-misses" "LLC-stores" "branch-load-misses" "branch-loads" "dTLB-load-misses" "dTLB-loads" "dTLB-store-misses" "dTLB-stores" "iTLB-load-misses" "iTLB-loads" "branch-instructions" "branch-misses" "bus-cycles" "cache-misses" "cache-references"...

2. Programming

Signal out from fork()'d shell script back to the C++ application

Hi, I am writing a C++ application; in which at one point I fork() a new process, which executes a shell script (via execv() call). Now the shell script can take a while to finish (tarring, burning a cd, etc.) and I would like to update the parent application about the progress (while the script...

3. UNIX for Dummies Questions & Answers

Trying to block signal

I have this code that doesnt do what it is suppose to do. It should block signal that I send while process is running. I press control+z while this process is running and it should be blocked but it isnt. When i press control+z it gives me this.... + Stopped When I change SIGTSP into SIGINT then...

4. Shell Programming and Scripting

How trap a signal in shell script?

Hi , i have a scenario where...i have to put a check where if script is executing more than 15mins i have to kill that script and n retry again 2nd time. i this case i can use background process to do it but i feel trap will be the efficent way to do so... but i dont know much about it...

5. Shell Programming and Scripting

How to ADD signal stop commands in Shell Script

Hi , I do have a shell which test the connectivity using ssh, soon after the login it should use the keys Ctrl + z or Ctrl + c to exit from login promt. So how do i need to implement these .

6. Programming

Signal processing

We have written a deamon which have many threads. We are registering for the SIGTERM and trying to close main thread in this signal handling. Actually these are running on Mac OS X ( BSD unix). When we are unloading the deamon with command launchctl, it's sending SIGTERM signal to our process...

7. Shell Programming and Scripting

Script Signal Processing

I am trying to develop a script that will properly handle kill signals particularly kill -2. I have program (_progres) that properly receives the signal if I run it from the command line directly: _progres -T /tmp -p /home/mejones/signal.p -b 2>&1 & If I try to put it in a script (i.e....

8. Programming

Signal catching

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",...

9. UNIX for Advanced & Expert Users

signal handling in shell script

Hi can any please tell me is it possible to catch the signal in a shell script like we do in C. if yes please give me some idea or a link.

10. Shell Programming and Scripting

shell script signal handler

AIX 4.3.3 I am trying to write a signal handler into a ksh shell script. I would like to capture the SIGTERM, SIGINT, and the SIGTSTP signals, print out a message to the terminal, and continue executing the script. I have found a way to block the signals: #! /bin/ksh SIGTERM=15 SIGINT=2...

Login or Register to Ask a Question