[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.
Hi everybody,
I'm trying to understand how a parent and child processes interact.
This function( below) basically measures the fork time from the perspective of the parent only.
what i would like to know is how to measure the time from the perspective of parent and child (ie: inserting... (0 Replies)
Hi
I am trying to see if there are some options in ps command or if there is a shell script which basically shows you all the processes spawned by a parent process , then all the processes of its child processes and so on down the hierarchy may be like a tree structure. It might be a generic... (6 Replies)
Hi
I want to do something that might sound strange.
I have a code that in written in C and is executed at startup (it's a custom process). It occasionally calls some bash scripts.
The process doesn't have any terminal associated with it.
One thing I don't know how to do is to start a... (5 Replies)
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)
Hi guys, I'm having some problem here, I'm studying pipes, and i want to create a shell in C and at this point a don't want to use semaphores, instead I want to use tricks. Straight to the doubt: I've a parent and a child process, and both of them has some code to execute, and the child process... (5 Replies)
Hi,
I have a script that calls other scripts/commands which may or may not spawn other process.
From my understanding, when I do a ps -ef, the highest numbered process ID is supposed to be the parent ID of all the other related child processes, is this correct?
In most or all... (3 Replies)
Hi, i want that the parent process start before the child, this code doesn't work,
if the child start before the parent it wait for signal, then the father send the signal SIGALRM and the child catch it and call printf;
else the father call printf and send the signal to the child that call its... (1 Reply)
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... (7 Replies)
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)
HI i would like to know how i can simulate a shell scripts for my requirement.
example
Server name child Process id Parent Process id
Vpesh 16013 15637
Server name child Process id Parent Process id
Vpesh 16014 15637
Server name child... (1 Reply)
Discussion started by: vpesh
1 Replies
LEARN ABOUT DEBIAN
scriptmgr2
SCRIPTMGR(1)SCRIPTMGR(1)NAME
scriptmgr - utility for controlling other skytools scripts.
SYNOPSIS
scriptmgr.py [switches] config.ini <command> [-a | job_name ... ]
DESCRIPTION
scriptmgr is used to manage several scripts together. It discovers potential jobs based on config file glob expression. From config file it
gets both job_name and service type (that is the main section name eg [cube_dispatcher]). For each service type there is subsection in the
config how to handle it. Unknown services are ignored.
COMMANDS
status
scriptmgr config.ini status
Show status for all known jobs.
start
scriptmgr config.ini start -a
scriptmgr config.ini start job_name1 job_name2 ...
launch script(s) that are not running.
stop
scriptmgr config.ini stop -a
scriptmgr config.ini stop job_name1 job_name2 ...
stop script(s) that are running.
restart
scriptmgr config.ini restart -a
scriptmgr config.ini restart job_name1 job_name2 ...
restart scripts.
reload
scriptmgr config.ini reload -a
scriptmgr config.ini reload job_name1 job_name2 ...
Send SIGHUP to scripts that are running.
CONFIG
Common configuration parameters
job_name
Name for particulat job the script does. Script will log under this name to logdb/logserver. The name is also used as default for PgQ
consumer name. It should be unique.
pidfile
Location for pid file. If not given, script is disallowed to daemonize.
logfile
Location for log file.
loop_delay
If continuisly running process, how long to sleep after each work loop, in seconds. Default: 1.
connection_lifetime
Close and reconnect older database connections.
log_count
Number of log files to keep. Default: 3
log_size
Max size for one log file. File is rotated if max size is reached. Default: 10485760 (10M)
use_skylog
If set, search for [./skylog.ini, ~/.skylog.ini, /etc/skylog.ini]. If found then the file is used as config file for Pythons logging
module. It allows setting up fully customizable logging setup.
scriptmgr parameters
config_list
List of glob patters for finding config files. Example:
config_list = ~/dbscripts/conf/*.ini, ~/random/conf/*.ini
Service section parameters
cwd
Working directory for script.
args
Arguments to give to script, in addition to -d.
script
Path to script. Unless script is in PATH, full path should be given.
disabled
If this service should be ignored.
Example config file
[scriptmgr]
job_name = scriptmgr_livesrv
logfile = ~/log/%(job_name)s.log
pidfile = ~/pid/%(job_name)s.pid
config_list = ~/scripts/conf/*.ini
# defaults for all service sections
[DEFAULT]
cwd = ~/scripts
[table_dispatcher]
script = table_dispatcher.py
args = -v
[cube_dispatcher]
script = python2.4 cube_dispatcher.py
disabled = 1
[pgqadm]
script = ~/scripts/pgqadm.py
args = ticker
COMMAND LINE SWITCHES
Following switches are common to all skytools.DBScript-based Python programs.
-h, --help
show help message and exit
-q, --quiet
make program silent
-v, --verbose
make program more verbose
-d, --daemon
make program go background
Following switches are used to control already running process. The pidfile is read from config then signal is sent to process id specified
there.
-r, --reload
reload config (send SIGHUP)
-s, --stop
stop program safely (send SIGINT)
-k, --kill
kill program immidiately (send SIGTERM)
Options specific to scriptmgr:
-a, --all
Operate on all non-disabled scripts.
03/13/2012 SCRIPTMGR(1)