10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hi guys,
I have the following code:
int main(int argc, char *argv)
{
int pid1,pid2,i=0;
pid1=fork();
i+=2;
if(!pid1) i++;
if(i%3) pid2=fork();
if (pid2==0)
{
printf("sea \n ");
i-=1;
}
if(i>=2)... (4 Replies)
Discussion started by: pfpietro
4 Replies
2. UNIX for Dummies Questions & Answers
Good evening everyone. I have my finals and I'm facing a problem:
I have a for cycle that is supposed to fork 2 children but somehow it forks only the first one.
What am I doing wrong ?
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>... (1 Reply)
Discussion started by: pfpietro
1 Replies
3. Programming
Hello everyone, this is my first post.
I have a task to use a fork to create multiple processes and then use execlp to run another program to add 2 numbers.
The problem I am having is we are supposed to use the exit() call in the execlp to return the small integer. This is a bad way to... (3 Replies)
Discussion started by: Johnathan_1017
3 Replies
4. Programming
Hi, can someone please help me with creating mutltiple fork.. I was expecting something like this:
I am a child: 1 PID: 1215
I am a child: 2 PID: 1216
I am a child: 3 PID: 1217
I am a child: 4 PID: 1218
I am a child: 5 PID: 1219
I am a child: 6 PID: 1215
I am a child: 7 PID: 1216
I am a... (4 Replies)
Discussion started by: Placenzo
4 Replies
5. Programming
i am a beginner of C, and i tired to fork multiple child and all of them belongs to same parents and each of child responsible for printing individual data.
but i don't have any idea how to do......
Can any body help? thanks a lot really. (7 Replies)
Discussion started by: wendy1089
7 Replies
6. Programming
Hi All,
In my program i am handling SIGHUP signal. In the handler i fork and then exec on child process same binary file which is running. Parent process will die after 10 mins.
Now my child process which was exec with same binary file is not receiving SIGHUP signal. Below is the progran code:... (6 Replies)
Discussion started by: sushil_shalin
6 Replies
7. UNIX for Dummies Questions & Answers
I have this little program ...
int main(void){
printf("Before");
fork();
printf("After");
}
output is this.....
BeforeAfterBeforeAfter
Shouldnt it be.....BeforeAfterAfter
After parent is forked child receives the copy of program and continues from next statement... (3 Replies)
Discussion started by: joker40
3 Replies
8. UNIX for Dummies Questions & Answers
Hi. One of my company's customers requires mails to be sent to them to use TLS. Thanks to some good documentation on the web, I've got this mostly figured out, but now I'm stuck at generating the CSR.
My company's mail domain is sg.bunny.com (not real address, obviously), but the email gateway... (0 Replies)
Discussion started by: pierreery
0 Replies
9. Programming
i'm just trying to make 2 process read from the same 1 line a time. For some reason only the child reads.
#include<stdio.h>
#include <sys/types.h>
void getlinefromfilep(void);
void getlinefromfilec(void);
int see=0;
FILE * fileptr1;
//need globe variable to tell pro3 to stop
main()... (3 Replies)
Discussion started by: ddx08
3 Replies
10. Programming
Hi,
Consider the following piece of code:
int main(void) {
int i;
pid_t pidp;
for (i=0;i<4;i++) {
switch (pidp=fork()) {
case -1:
fprintf(stdout, "Error during fork.\n");
exit (1);
case 0:
fprintf(stdout, "From child: I am... (4 Replies)
Discussion started by: qntmteleporter
4 Replies
LINUX-VERSION(1) General Commands Manual LINUX-VERSION(1)
NAME
linux-version - operate on Linux kernel version strings
SYNOPSIS
linux-version compare VERSION1 OP VERSION2
linux-version sort [--reverse] [VERSION1 VERSION2 ...]
linux-version list [--paths]
DESCRIPTION
linux-version operates on Linux kernel version strings as reported by uname -r and used in file and directory names. These version strings
do not follow the same rules as Debian package version strings and should not be compared as such or as arbitrary strings.
compare VERSION1 OP VERSION2
Compare version strings, where OP is a binary operator. linux-version returns success (zero result) if the specified condition is
satisfied, and failure (nonzero result) otherwise. The valid operators are: lt le eq ne ge gt
sort [--reverse] [VERSION1 VERSION2 ...]
Sort the given version strings and print them in order from lowest to highest. If the --reverse option is used, print them in order
from highest to lowest.
If no version strings are given as arguments, the version strings will instead be read from standard input, one per line. They may
be suffixed by arbitrary text after a space, which will be included in the output. This means that, for example:
linux-version list --paths | linux-version sort --reverse
will list the installed versions and corresponding paths in order from highest to lowest version.
list [--paths]
List kernel versions installed in the customary location. If the --paths option, show the corresponding path for each version.
AUTHOR
linux-version and this manual page were written by Ben Hutchings as part of the Debian linux-base package.
30 March 2011 LINUX-VERSION(1)