doubt in child process Post: 302277747

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1. UNIX for Advanced & Expert Users

gdb to child process

Hi, I want to debug a child process which is forked from other process. Whenever I try to attach the pid of child process to gbd, the process gets killed and the parent process starts a new child process. any idea what could be the reason. In general how can i debug a child process...

2. UNIX for Dummies Questions & Answers

about child process

hello every one, i want to know more about creation of child process. UNDER WHAT CIRCUMSTANCES child process is created? WHAT ARE THE PREREQUISITES for a child process to be created? let us say we have a prog.c, prog.obj(compiled.c),.a\.out files. is any child PROCESS CREATED...

3. Programming

Time taken by a child process?

Hi, I have a program where I fork few child jobs and call execvp to run another jobs. I use wait to wait for any job to get complete. Requirement is I need to know the actual time taken by child job during execution. I thought of calculating the time just before forking and after wait, but...

4. Programming

Why does my child process not exit?

Im sure it has something to do with the wait() call, but everything ive tried either leaves me with a zombie or with the exec executing indefinitely. switch(pid = fork()) { case -1:perror("fork failed"); exit(1); case 0: if(key == "cd") { execl("/bin/cd", "cd",...

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How to make the parent process to wait for the child process

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...

6. Shell Programming and Scripting

Child Process Name

Hi , I want to find out the child process name given its PID. I have used the ps command but it displays the parent process name against child PID. Is there any way to find out name of child program executing under any parent program?

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[KSH/Bash] Starting a parent process from a child process?

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,...

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script to get child process for a process

!/bin/sh pid=$(ps -Aj | grep MSTRSvr | grep -v grep | awk '{print $1}') sid=$(ps -Aj | grep MSTRSvr | grep -v grep | awk '{print $3}') ps -s "$sid" I am not able to get the desired output it says process list error if i use watch ps -s "$sid" it considers only the first session id

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signal between parent process and child process

Hello, everyone. Here's a program: pid_t pid = fork(); if (0 == pid) // child process { execvp ...; } I send a signal (such as SIGINT) to the parent process, the child process receive the signal as well as the parent process. However I don't want to child process to receive the...

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forking a child process and kill its parent to show that child process has init() as its parent

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...

LEARN ABOUT SUNOS

uname

uname(2)							   System Calls 							  uname(2)

NAME

       uname - get name of current operating system

SYNOPSIS

       #include <sys/utsname.h>

       int uname(struct utsname *name);

DESCRIPTION

       The uname() function stores information identifying the current operating system in the structure pointed to by name.

       The uname() function uses the utsname structure, defined in <sys/utsname.h>, whose members include:

       char    sysname[SYS_NMLN];
       char    nodename[SYS_NMLN];
       char    release[SYS_NMLN];
       char    version[SYS_NMLN];
       char    machine[SYS_NMLN];

       The  uname()  function returns a null-terminated character string naming the current operating system in the character array sysname. Simi-
       larly, the nodename member contains the name by which the system is known on a communications network.  The  release  and  version  members
       further identify the operating system. The machine member contains a standard name that identifies the hardware on which the operating sys-
       tem is running.

RETURN VALUES

       Upon successful completion, a non-negative value is returned. Otherwise, -1 is returned and errno is set to indicate the error.

ERRORS

       The uname() function will fail if:

       EFAULT	       The name argument points to an illegal address.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Async-Signal-Safe 	   |
       +-----------------------------+-----------------------------+

SEE ALSO

       uname(1), sysinfo(2), sysconf(3C), attributes(5), standards(5)

SunOS 5.10							    21 Jul 1999 							  uname(2)

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

gdb to child process

Discussion started by: shriashishpatil

2. UNIX for Dummies Questions & Answers

about child process

Discussion started by: compbug

3. Programming

Time taken by a child process?

Discussion started by: anjul_thegreat

4. Programming

Why does my child process not exit?

Discussion started by: p00ndawg