07-16-2002
10 More Discussions You Might Find Interesting
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please do answer it is urgent
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hello every one,
i want to know more about creation of child process.
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WHAT ARE THE PREREQUISITES for a child process to be created?
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Hi All,
I have two ksh script. 1st script calls the 2nd script and the second script calls an 'C' program.
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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.
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5. Shell Programming and Scripting
I'm writing a wrapper script (in bash) that wraps another (bash) script. When calling the wrapped script, I need to pass all the received arguments/options to it. Is there a built in variable that holds all the options? I wrote a little while loop (see below) which works. But I wanted to know if... (1 Reply)
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More detail.
ScriptA (bash), ScriptB (ksh), ScriptC (bash)
ScriptA, launches ScriptB
ScirptB,... (7 Replies)
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Hello,
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8. Shell Programming and Scripting
!/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
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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.
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Discussion started by: jackliang
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10. 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.
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Discussion started by: vizz_k
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LEARN ABOUT ULTRIX
setpgid
setpgid(3) Library Functions Manual setpgid(3)
Name
setpgid - set process group (POSIX)
Syntax
#include <sys/types.h>
int
setpgid(pid, pgrp)
pid_t pid, pgrp;
Description
The function is used to either join an existing process group or create a new process group within the session of the calling process (see
Upon successful completion, the process group ID of the process that has a process ID which matches pid is set to pgrp. If pid is zero,
then the call applies to the current process. In addition, if pgrp is zero, the process ID of the indicated process is used.
This function is available only in the POSIX environment.
Return Values
The function returns 0 when the operation is successful. If the request fails, -1 is returned and the global variable indicates the rea-
son.
Diagnostics
The function fails and the process group is not altered if one of the following occurs:
[EACCES] The value of the pid argument matches the process ID of a child process of the calling process and the child process has
successfully executed an function.
[EINVAL] The value of the pgrp argument is less than zero or is not a supported value.
[EPERM] The process indicated by the pid argument is a session leader.
The value of the pid argument matches the process ID of a child process of the calling process and the child process is not
in the same session as the calling process.
The value of the pgrp argument does not match the process ID of the process indicated by the pid argument and there is no
process with a process group ID that matches the value of the pgrp argument in the same session as the calling process.
[ESRCH] The value of the pid argument does not match the process ID of the calling process of a child process of the calling
process.
See Also
getpgrp(2), setsid(2)
setpgid(3)