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Full Discussion: Writing a service in Linux
Top Forums UNIX for Advanced & Expert Users Writing a service in Linux Post 29516 by sivhard on Tuesday 8th of October 2002 08:46:44 AM
Old 10-08-2002
I got u r question ... u mean that it should run in back ground for ever till the server is rebooted.
What u have to do is

define the service in a program set the program in such a way that it should become the group leader.

setsid=getpid() ; /* This will make u r service the leader of u r group u belong to */

i don't remember the whole syntax in detail u can go thru the daemon concepts and find it out.

u can run this by manually running the program or setting this particular program in u r cron job if u have any difficulties in cron please feel free to contact me at sivhard@rediffmail.com
 

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service(8)						      System Manager's Manual							service(8)

NAME
service - run a System V init script SYNOPSIS
service SCRIPT COMMAND [OPTIONS] service --status-all service --help | -h | --version DESCRIPTION
service runs a System V init script in as predictable environment as possible, removing most environment variables and with current working directory set to /. The SCRIPT parameter specifies a System V init script, located in /etc/init.d/SCRIPT. The supported values of COMMAND depend on the invoked script, service passes COMMAND and OPTIONS it to the init script unmodified. All scripts should support at least the start and stop commands. As a special case, if COMMAND is --full-restart, the script is run twice, first with the stop command, then with the start command. service --status-all runs all init scripts, in alphabetical order, with the status command. EXIT CODES
service calls the init script and returns the status returned by it. FILES
/etc/init.d The directory containing System V init scripts. ENVIRONMENT
LANG, TERM The only environment variables passed to the init scripts. SEE ALSO
/etc/init.d/skeleton, update-rc.d(8), init(8), invoke-rc.d(8). Jan 2006 service(8)
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