10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I was working on some Perl code that does signal handling and I came across this one liner and wasn't sure what it was doing.
local $SIG{__DIE__} = sub {$! = 2; die $_;};
I think the first part of the anonymous subroutine is setting $! to 2, but I am not sure what the second part is doing. ... (1 Reply)
Discussion started by: SFNYC
1 Replies
2. Shell Programming and Scripting
Hi,
I have two files , one file with data file with attributes that need to be sent to another file to generate a predefined format.
Example:
File.txt
AP|{SSHA}VEEg42CNCghUnGhCVg==
APVG3|{SSHA}XK|"password"
AP3|{SSHA}XK|"This is test"
....
etc
---------
test.sh has... (1 Reply)
Discussion started by: hudson03051nh
1 Replies
3. Programming
Hi,
I have a problem with signal handler algorithm in linux. My code is hanging ( It is continuously looping inside the signal handler) . I am pasting my code here...
Please provide me some help regarding this. I googled many places and wrote this code.. but doesnt seem to be working without... (6 Replies)
Discussion started by: sree_ec
6 Replies
4. Programming
Hi. I have a program whose job it is to manage 15 child processes. Sometimes these children die (sometimes deliberately other times with a SEGV). This causes a SIGCHLD to be sent to my program which uses waitpid() in the signal handler to gather information and, in most cases, restart the child.... (3 Replies)
Discussion started by: jrichemont
3 Replies
5. UNIX for Dummies Questions & Answers
Hello,
I have develop a driver for my hardware and now, I need to handle a IRQ but I does not work.
As I can understand, to handle a irq, it is necessary to make a request_irq(). If the return value is zero, ok, no problem to handle irq.
Here is a easy example of my driver:
#include... (8 Replies)
Discussion started by: webquinty
8 Replies
6. Shell Programming and Scripting
Hi there,
I'm newby in perl and XML. I can read and parse Xml with XML-Node upper XML::Parser, but how can I create XML tags and pack my individual data in it then send through socket. PLZ lead me :)
Meanwhile what is your opinion about XML Writer library?
Thanks in Advance. (2 Replies)
Discussion started by: Zaxon
2 Replies
7. Shell Programming and Scripting
Hi there,
I am trying to call a shell script from a Perl script. here is the code:
@args = ("sh", "someshellprg.sh", "a file handler", "an array");
system(@args) == 0
or die "system @args failed: $?";
in the shell program, I examine if the arguments exits using:
if
then echo... (5 Replies)
Discussion started by: pinkgladiator
5 Replies
8. Programming
Hey guys,
I am trying to write a little shell, and was writing a signal handler to handle SIGINT (I am using 'stty intr ^C' and using ctrl-C to give SIGINT).
I wrote this signal handler: void handle_sigint()
{
write(2,"handling sigint\n",16);
write(1,"\nshell% ",8);
}
... (4 Replies)
Discussion started by: blowtorch
4 Replies
9. Shell Programming and Scripting
Hai ,
I Have Some x.txt file in which has the following data
x.txt
HI, How Are u
r u fine
/home/Sanju/samp.html
/root/Sanju/design/sample
now in tcl i have the following script
set fp
while { >= 0 } {
puts $line
... (1 Reply)
Discussion started by: sanjustudy
1 Replies
10. Programming
Hi,
I have an c++ application which uses the function fork and execvp().
The parent does not wait until the child ends. The parents just creates children and let them do their stuff.
You can see the parent program as a batch-manager.
I have added a SIGCHLD handler to the program:
void... (3 Replies)
Discussion started by: jens
3 Replies