If you’re asking what the meaning of the acronym rc is, according to the jargon file, it derives from runcom:. rc file: /R C fi:l/, n. [Unix: from runcom files on the CTSS system 1962-63, via the startup script /etc/rc] Script file containing startup instructions for an application program (or an entire operating system), usually a text file containing commands of the sort that might have been …
# ls -l / etc/rc.d /rc.local -rwxr-xr-x. 1 root root 473 Nov 8 00:20 / etc/rc.d /rc.local 3. Enable rc.local service, to make sure it starts every time after a reboot.
Historically, the / etc/rc.d directory tree denotes an Init system which follows the 4.4 BSD tradition of system initialization, which is usually called the rc init system. All the modern (Free/Open/Net)BSD system and Slackware Linux follow this tradition. The /etc/init.d directory tree denotes the System V (SysV) init system which follows the AT&T UNIX, SunOS, Solaris.
# ls -lrt / etc/rc.d total 60 -rwxr-xr-x 1 root root 889 Jan 29 2015 rc.local -rwxr-xr-x 1 root root 20199 Oct 4 2017 rc.sysinit -rwxr-xr-x 1 root root 2617 Oct 4 2017 rc drwxr-xr-x. 2 root root 4096 Mar 20 16:49 init.d drwxr-xr-x. 2 root root 4096 Mar 20 16:49 rc1.d drwxr-xr-x. 2 root root 4096 Mar 20 16:49 rc0.d drwxr-xr-x. 2 root root 4096 Mar 20 16:49 rc6.d drwxr-xr-x. 2 root root 4096.
1/11/2006 · The boot process, or to be more accurate the init command, will decide the runlevel to select (in the example above it’s 4) and from that will decide the rc.d script files to be run. In this case either the file / etc/rc.d /rc.4 or any files in the directory / etc/rc.d /rc4.d. Let’s look at an example rc.d script file.
An introduction to services, runlevels, and rc … – linux.com, How to Execute Scripts/Commands using /etc/rc.d/rc.local …
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In short: ls /etc/rc*.d This shows you what starts at which runlevel, and within each level the order is determined by the number after the letter (K is Kill, S is start).
7/28/2010 · / etc/rc.d /rcX.d directory contain scripts which are execute at boot time or at runlevel changing. if script name start with S it means script/service start at boot time. if script name start with K it means script/service stop/kill at boot time. if you want to start lampp service in runlevel 3 then create link with S HTH, How- To: Managing services with update- rc.d 3 minute read Linux services can be started, stopped and reloaded with the use of scripts stocked in /etc/init.d/.. However, during start up or when changing runlevel, those scripts are searched in /etc/rcX.d/ where X is the runlevel number.
Once init loads, it first runs the / etc/rc.d / rc. sysinit script, which sets the environment path, starts the swap, checks the file systems, and executes all other steps required for system initialization and then it will read it’s configuration file /etc/ inittab. /etc/rc.local file
