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Full Discussion: Creating script in rc.d
Top Forums UNIX for Advanced & Expert Users Creating script in rc.d Post 303042980 by anaigini45 on Wednesday 15th of January 2020 12:39:34 AM
Old 01-15-2020
Creating script in rc.d
Hi,


I have created customized scripts to start httpd and postgres (For CentOS 6) in /etc/init.d. However for it to work even after reboot, I have to put the script in /etc/rc.d/rc0.d, rc1.d, etc.


Code:
[root@dev3-pdx rc.d]# ls -lrt
total 60
-rwxr-xr-x  1 root root 20199 Oct  4  2017 rc.sysinit
-rwxr-xr-x  1 root root   220 Oct  4  2017 rc.local
-rwxr-xr-x  1 root root  2617 Oct  4  2017 rc
drwxr-xr-x. 2 root root  4096 May 14  2019 rc1.d
drwxr-xr-x. 2 root root  4096 May 14  2019 rc0.d
drwxr-xr-x. 2 root root  4096 May 14  2019 rc6.d
drwxr-xr-x. 2 root root  4096 May 14  2019 rc2.d
drwxr-xr-x. 2 root root  4096 May 14  2019 rc5.d
drwxr-xr-x. 2 root root  4096 May 14  2019 rc4.d
drwxr-xr-x. 2 root root  4096 May 14  2019 rc3.d
drwxr-xr-x. 2 root root  4096 Jan 15 11:49 init.d
[root@dev3-pdx rc.d]#

However, the naming convention for the scripts, for eg, in the directory rc0.d is like this :


Code:
[root@dev3-pdx rc0.d]# ls
K01certmonger  K10cups               K15svnserve        K50kdump       K73winbind           K75quota_nld       K84wpa_supplicant  K88rsyslog      K92iptables      K99rngd
K01smartd      K10psacct             K16abrt-ccpp       K50xinetd      K74acpid             K75udev-post       K85mdmonitor       K88sssd         K92pppoe-server  K99sysstat
K02oddjobd     K10saslauthd          K16abrtd           K60crond       K74haldaemon         K76ypbind          K85messagebus      K89netconsole   K95firstboot     S00killall
K03rhnsd       K15htcacheclean       K25sshd            K60nfs         K74ntpd              K83bluetooth       K87irqbalance      K89portreserve  K95rdma          S01halt
K04osad        K15htcacheclean-myeg  K30postfix         K61nfs-rdma    K75blk-availability  K83nfslock         K87restorecond     K89rdisc        K99cpuspeed
K05atd         K15httpd              K30spice-vdagentd  K69rpcsvcgssd  K75netfs             K83rpcgssd         K87rpcbind         K90network      K99lvm2-monitor
K05wdaemon     K15httpd-myeg         K50dnsmasq         K72autofs      K75ntpdate           K84NetworkManager  K88auditd          K92ip6tables    K99oscap-scan
[root@dev3-pdx rc0.d]#

How do I know what number to put for my script? Like K16.....etc.
 

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LEARN ABOUT CENTOS

startpar

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

NAME

       startpar - start runlevel scripts in parallel

SYNOPSIS

       startpar [-p par] [-i iorate] [-t timeout] [-T global_timeout] [-a arg] prg1 prg2 ...
       startpar [-p par] [-i iorate] [-t timeout] [-T global_timeout] -M [ boot|start|stop]

DESCRIPTION

       startpar  is  used  to run multiple run-level scripts in parallel.  The degree of parallelism on one CPU can be set with the -p option, the
       default is full parallelism. An argument to all of the scripts can be provided with the -a option.  Processes blocked by pending  I/O  will
       cause  new  process  creation  to be weighted by the iorate factor 800.	To change this factor the option -i can be used to specify another
       value.  The amount weight=(nblockedxiorate)/1000 will be subtracted from the total number  of  processes  which	could  be  started,  where
       nblocked is the number of processes currently blocked by pending I/O.

       The  output  of	each  script is buffered and written when the script exits, so output lines of different scripts won't mix. You can modify
       this behaviour by setting a timeout.

       The timeout set with the -t option is used as buffer timeout. If the output buffer of a script is not empty and the last output was timeout
       seconds ago, startpar will flush the buffer.

       The  -T option timeout works more globally. If no output is printed for more than global_timeout seconds, startpar will flush the buffer of
       the script with the oldest output. Afterwards it will only print output of this script until it is finished.

       The -M option switches startpar into a make(1) like behaviour.  This option takes three different arguments:  boot,  start,  and  stop  for
       reading .depend.boot or .depend.start or .depend.stop respectively in the directory /etc/init.d/.  By scanning the boot and runlevel direc-
       tories in /etc/init.d/ it then executes the appropriate scripts in parallel.

FILES

       /etc/init.d/.depend.boot
       /etc/init.d/.depend.start
       /etc/init.d/.depend.stop

SEE ALSO

       init(8) insserv(8).

COPYRIGHT

       2003,2004 SuSE Linux AG, Nuernberg, Germany.
       2007 SuSE LINUX Products GmbH, Nuernberg, Germany.

AUTHOR

       Michael Schroeder <mls@suse.de>
       Takashi Iwai <tiwai@suse.de>
       Werner Fink <werner@suse.de>

								     Jun 2003							       STARTPAR(8)
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