Add a custom Shell to a Linux system as a system service

Article Title: Add a custom Shell to a Linux system to serve the system. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source.

1. [root @ localhost ~] # Cp/usr/local/apache2/bin/apachectl/etc/init. d/httpd

2. [root @ localhost ~] # Vi/etc/init. d/httpd

3. Add in the second line (required; otherwise, join is unavailable)

# Chkconfig: 2345 85 15

# Description: httpd is web server (described here ).

Note: "2345" indicates loading the service at the four startup levels of "2345". "85" indicates the sequence number at startup (at startup), and "15" indicates the sequence number at Shutdown (at shutdown.

4. [root @ localhost ~] # Chkconfig-add httpd

5. [root @ localhost ~] # Chkconfig -- level 35 httpd on