07-27-2009
Defining Custom Signal
Is it possible to send a custom signal to a process?
e.g. Send signal 9999 to my process, which handles it with some custom handler.
How would one do this?
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
I'm trying to define a variable named sin
I already have a variable named cos, which has the value "hello"
I want sin to have the value of "hellothere",
so sin would be something like
sin = $cos & "there"
but I'm not sure that I know the syntax.
Can anyone help?
:confused: (4 Replies)
Discussion started by: sailorliones
4 Replies
2. AIX
I've got a modified samba script (named it winprint) that I can use to print out to a to a shared Win Network printer from an AIX machine. This is a modification of the samba provided smbprint script changed to work under AIX as the backend for a queue. It does not read a config file
I can print... (0 Replies)
Discussion started by: matheeq
0 Replies
3. Shell Programming and Scripting
Hey all, I was wondering if someone would take a look at this script I'm working on. I don't know if i have the syntax correct for my variables and if the for loop is written correctly.
any assistance would be greatly appreciated.
#!/usr/bin/bash
###########################################... (12 Replies)
Discussion started by: em23
12 Replies
4. UNIX and Linux Applications
I am running the example from the following webpage:
MySQL :: MySQL 5.0 Reference Manual :: 12.1.11 CREATE TRIGGER Syntax
and the problem is that triggers cannot be defined for some reason:
CREATE DATABASE IF NOT EXISTS triggertest;
USE triggertest;
CREATE TABLE test1(a1 INT);
CREATE TABLE... (3 Replies)
Discussion started by: figaro
3 Replies
5. Programming
Question regarding extend issue
What is the reason behind defining the inputStream object in this way...
InputStream inputStream = new FileInputStream("c:\\input.txt");
I know that FileInputStream extends InputStream, is there anything else ?
I mean we could have define it like ... (0 Replies)
Discussion started by: yahyaaa
0 Replies
6. UNIX for Dummies Questions & Answers
In root dir i have created a .profile file and added variable and assigned a path to it:
a = '/dir/dir'
export a
but when i echo (echo $a) the path or use this variable the value or path not getting displayed.
i tried executing the .profile and logging out and logging in, didnt workout. am... (1 Reply)
Discussion started by: abhi_n123
1 Replies
7. UNIX for Dummies Questions & Answers
I have defined this alias as quick way to find out which mount point to use for a USB drive after inserting it:
# alias da='dmesg | grep da | grep MB'
However, when invoking it, it states the following:
# da
da: Command not found.
Can someone explain what is the issue here and how it can be... (3 Replies)
Discussion started by: figaro
3 Replies
8. UNIX for Dummies Questions & Answers
Hi All,
I have a trivial question but I dont know how to solve it.
So basically I'm working on a USB key and I have a directory with some scripts which I use to work on files present in other directories within the USB or sometimes on the main harddisk too. The problem is every time I have to... (3 Replies)
Discussion started by: pawannoel
3 Replies
9. Programming
I have the following code and getting the compilation errors
baseLib/DynBaseObj.h:80: error: expected constructor, destructor, or type conversion before ‘(' token
baseLib/DynBaseObj.h:89: error: expected constructor, destructor, or type conversion before ‘(' token
baseLib/DynBaseObj.h:101:... (0 Replies)
Discussion started by: kristinu
0 Replies
10. UNIX for Dummies Questions & Answers
Hi
I'd say I'm having this weird problem where my script isn't taking the value off a variable or printing it. My code is like this:
set count_C= `grep -c C mols`
set count_H= `grep -c H mols`
set count_O= `grep -c O mols`
sed -i '7,7 s/$/ $count_C $count_O $count_H/g' input It... (8 Replies)
Discussion started by: saleheen
8 Replies
pause(2) System Calls Manual pause(2)
NAME
pause - suspend process until signal
SYNOPSIS
DESCRIPTION
suspends the calling process until it receives a signal. The signal must be one that is not currently set to be ignored or blocked
(masked) by the calling process.
If the signal causes termination of the calling process, does not return.
If the signal is by the calling process and control is returned from the signal-catching function (see signal(5)), the calling process
resumes execution from the point of suspension; with a return value of -1 from and set to
APPLICATION USAGE
Threads Considerations
Signal dispositions (such as catch/default/ignore) are shared by all threads in the process and blocked signal masks are maintained by each
thread. Therefore, the signals being waited for should not be ignored by the process or blocked by the calling thread.
will suspend only the calling thread until it receives a signal.
If other threads in the process do not block the signal, the signal may be delivered to another thread in the process and the thread in may
continue waiting. For this reason, the use of is recommended instead of for multi-threaded applications.
For more information regarding signals and threads, refer to signal(5).
SEE ALSO
alarm(2), kill(2), sigwait(2), wait(2), signal(5).
STANDARDS CONFORMANCE
pause(2)