This subchapter looks at init, a Linux command.
init is used to change the runlevel.
Teach Yourself UNIX/Linux System Administration and Shell Programming
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This subchapter looks at init, a Linux command.
init is used to change the runlevel.
Linux has run levels (sometimes written as a single word, runlevel). The non-graphic mode is run level 3. the graphic mode is run level 5. Sometimes a Linux server will only boot up to the non-graphic level. You can use this command to temporarily get the graphic interface running (run level 5).
$ init 5
Edit the /etc/inittab file to include id:5:initdefault: to make a permanent change.
A chart of the Linux run levels:
| RUN LEVEL | DESCRIPTION |
|---|---|
| 0 | System is halted |
| 1 | Single-user Mode used for system maintenance |
| 2 | Multiuser mode withut networking rarely used |
| 3 | Standard multiuser mode with networking active |
| 4 | not defined |
| 5 | Multiuser mode with graphics Like standard multiuser mode with networking active plus the X Window System graphic interface |
| 6 | Reboots the system shuts down all system services |
Coding example: I am making heavily documented and explained open source code for a method to play music for free — almost any song, no subscription fees, no download costs, no advertisements, all completely legal. This is done by building a front-end to YouTube (which checks the copyright permissions for you).
View music player in action: www.musicinpublic.com/.
Create your own copy from the original source code/ (presented for learning programming).
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Teach Yourself UNIX/Linux System Administration and Shell Programming
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This web site handcrafted on Macintosh computers using Tom Bender’s Tex-Edit Plus and served using FreeBSD .
†UNIX used as a generic term unless specifically used as a trademark (such as in the phrase “UNIX certified”). UNIX is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company Ltd.
Names and logos of various OSs are trademarks of their respective owners.
Copyright © 2012 Milo
Created: June 30, 2012
Last Updated: June 30, 2012
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