10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
The task I have to do is something along the lines "I receive some input and based on the first character I send it through pipe to one of the children to print".
The scheme it is based on is 1->2; 1->3; 1->4; 2 will print all the input that starts with a letter, 3 will print all the input that... (2 Replies)
Discussion started by: Ildiko
2 Replies
2. UNIX for Dummies Questions & Answers
Hi all,
Looking for some help, I have written a very simple script to pass to PowerHA to act as an indicator to activate failover required.
Where i get completely lost is I have to create a wait and carry out the grep for the process once every 10 seconds this works but need to embed this... (1 Reply)
Discussion started by: Gary Hay
1 Replies
3. Shell Programming and Scripting
Hi everyone
i am very new to linux , working on bash shell.
I am trying to solve the given problem
1. Create a process and then create children using fork
2. Check the Status of the application for successful running.
3. Kill all the process(threads) except parent and first child... (2 Replies)
Discussion started by: vizz_k
2 Replies
4. Programming
Hi friends,
I have a small question regarding unix system call fork, I hope you will solve my problem. Here is the small program
$ cat fork1.c
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
int main()
{
int pid;
int x = 0;
x = x + 1;
pid = fork();
if(pid < 0)
{... (2 Replies)
Discussion started by: gabam
2 Replies
5. Programming
Hi gurus can you explain following lines of code ?
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
int main(void)
{
pid_t pid;
int rv;
switch(pid = fork()) {
case -1:
... (7 Replies)
Discussion started by: wakatana
7 Replies
6. Shell Programming and Scripting
Hey all, I need to launch a script from within 2 other scripts that can run independently of the two parent scripts... Im having a hard time doing this, if anyone knows how please let me know.
More detail.
ScriptA (bash), ScriptB (ksh), ScriptC (bash)
ScriptA, launches ScriptB
ScirptB,... (7 Replies)
Discussion started by: trey85stang
7 Replies
7. Shell Programming and Scripting
Hi All,
I have two ksh script. 1st script calls the 2nd script and the second script calls an 'C' program.
I want 1st script to wait until the 'C' program completes.
I cant able to get the process id for the 'C' program (child process) to make the 1st script to wait for the second... (7 Replies)
Discussion started by: sennidurai
7 Replies
8. UNIX for Advanced & Expert Users
Hi, as I understand fork(), it makes a copy of the parent which becomes a child. But is there anyway to make three children for that one parent. So in other words, if I look up the getppid() of the children, I want them to have the same value??
Thanks in advance to any help! (1 Reply)
Discussion started by: MS_CC
1 Replies
9. Programming
Hello, I'm trying to implement a version of a bucketSort (kinda) server/client, but I'm having a VERY hard time on making the server behave correctly, when talking to the children, after it forks.
The server is kinda big (300+ lines), so I won't post it here, but here's what I'm doing.
1)create a... (8 Replies)
Discussion started by: Zarnick
8 Replies
10. Shell Programming and Scripting
how to find the chid process id from given parent process id.... (the chid process doesnot have sub processes inturn) (3 Replies)
Discussion started by: guhas
3 Replies