Solved

Creating a Daemon

Posted on 1998-11-09
4
283 Views
Last Modified: 2010-04-20
I need to make a process into a daemon either through the command line or programmatically.  (command line, preferred)

0
Comment
Question by:dpeng
4 Comments
 
LVL 2

Accepted Solution

by:
harrys earned 50 total points
ID: 1638458
from the comandline you could start it with
daemon&
which pushes it to the background.
in a program you would call fork() which starts a childprocess, then  inside the child  close the  stdin/stdout/stderr filehandles (see the manualpage of fork for details how
to detect who the child is..) and the child is you new daemon. inside the parent just
terminate the process.

0
 

Expert Comment

by:overcode
ID: 1638459
Linux Journal ran an article on daemons a while back, complete with code samples. It might be available on their web site.

-Reeves
0
 
LVL 2

Expert Comment

by:benten
ID: 1638460
What do you mean by a daemon?  Most programs that are considered daemons first fork a new process, orphan the child (by having the parent exit), close all the file descriptors and reset the session ids.
0
 

Author Comment

by:dpeng
ID: 1638461
Alright I'll try it out.
0

Featured Post

Comprehensive Backup Solutions for Microsoft

Acronis protects the complete Microsoft technology stack: Windows Server, Windows PC, laptop and Surface data; Microsoft business applications; Microsoft Hyper-V; Azure VMs; Microsoft Windows Server 2016; Microsoft Exchange 2016 and SQL Server 2016.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction We as admins face situation where we need to redirect websites to another. This may be required as a part of an upgrade keeping the old URL but website should be served from new URL. This document would brief you on different ways ca…
The purpose of this article is to demonstrate how we can use conditional statements using Python.
Learn several ways to interact with files and get file information from the bash shell. ls lists the contents of a directory: Using the -a flag displays hidden files: Using the -l flag formats the output in a long list: The file command gives us mor…
Learn how to get help with Linux/Unix bash shell commands. Use help to read help documents for built in bash shell commands.: Use man to interface with the online reference manuals for shell commands.: Use man to search man pages for unknown command…

685 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question