doubt in child process Post: 302277747

10 More Discussions You Might Find Interesting

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",...

5. Shell Programming and Scripting

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?

7. Shell Programming and Scripting

[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,...

8. Shell Programming and Scripting

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

9. Emergency UNIX and Linux Support

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...

10. Shell Programming and Scripting

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 OSX

uname

UNAME(3)						   BSD Library Functions Manual 						  UNAME(3)

NAME

     uname -- get system identification

LIBRARY

     Standard C Library (libc, -lc)

SYNOPSIS

     #include <sys/utsname.h>

     int
     uname(struct utsname *name);

DESCRIPTION

     The uname() function stores nul-terminated strings of information identifying the current system into the structure referenced by name.

     The utsname structure is defined in the <sys/utsname.h> header file, and contains the following members:

	   sysname	 Name of the operating system implementation.

	   nodename	 Network name of this machine.

	   release	 Release level of the operating system.

	   version	 Version level of the operating system.

	   machine	 Machine hardware platform.

RETURN VALUES

     The uname() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indicate
     the error.

ERRORS

     The uname() function may fail and set errno for any of the errors specified for the library functions sysctl(3).

SEE ALSO

     uname(1), sysctl(3)

STANDARDS

     The uname() function conforms to IEEE Std 1003.1-1988 (``POSIX.1'').

HISTORY

     The uname() function first appeared in 4.4BSD.

BSD
								  January 4, 1994							       BSD

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