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rc2(8) [osf1 man page]

rc2(8)							      System Manager's Manual							    rc2(8)

NAME
rc2 - Run command script executed when entering a multiuser run level SYNOPSIS
rc2 DESCRIPTION
The rc2 script contains run commands that enable initialization of the system to a multiuser state; run level 2. In addition to commands listed within the script itself, rc2 contains instructions to run certain commands found in the /sbin/rc2.d directory. The script defines the conditions under which the commands execute; some commands run if the system is booting, other commands execute if the system is chang- ing run levels. By convention, files in the /sbin/rc2.d directory begin with either the letter "K" or the letter "S" and are followed by a two-digit number and a filename; for example: K00lpd S00savecore S25uucp In general, the system starts commands that begin with the letter "S" and stops commands that begin with the letter "K." Commands that begin with the letter "K" run only when the system is changing run levels from a higher to a lower level. Commands that begin with the letter "S" run in all cases. The numbering of commands in the /sbin/rc2.d directory is important since the numbers are sorted and the com- mands are run in ascending order. Files in the /sbin/rc2.d directory are normally links to files in the /etc/init.d directory. An entry in the inittab file causes the system to execute the rc2 run commands, for example: s2:23:wait:/sbin/rc2 < /dev/console > /dev/console 2>&1 The following operations are typical of those that result from executing the rc2 script and the commands located in the /sbin/rc2.d direc- tory. The operation depends on which state the system is entering or exiting. Setting the time zone Checking the current run level Stop- ping network services and daemons Starting (or stopping) system services and daemons Starting the cron daemon Setting up paging and dump facilities Setting up uucp files Setting the TIMEZONE variable is one of the first operations completed by the rc2 script. This action provides the default time zone for subsequent commands. FILES
Specifies the command path Specifies the directory of commands that correspond to the run level RELATED INFORMATION
Commands: init(8), rc0(8), rc3(8) delim off rc2(8)

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rc0(8)							      System Manager's Manual							    rc0(8)

NAME
rc0 - Runs command script executed when stopping the system SYNOPSIS
rc0 DESCRIPTION
The rc0 script contains run commands that enable a smooth shutdown and bring the system to a single-user state; run levels 0 and s. In addition to commands listed in within the script itself, rc0 contains instructions to run commands found in the /sbin/rc0.d directory. The script defines the conditions under which the commands execute; some commands run if the system is being shut down while others run if the system is being shut down and rebooted to single user. By convention, files in the /sbin/rc0.d directory begin with either the letter "K" or the letter "S" and are followed by a two-digit number and a filename, for example: K00enlogin K05lpd K60cron K30nfs In general, the system starts commands that begin with the letter "S" and stops commands that begin with the letter "K." The numbering of commands in the /sbin/rc0.d directory is important since the numbers are sorted and the commands are run in ascending order. Files in the /sbin/rc0.d directory are normally links to files in the /etc/init.d directory. An entry in the inittab file causes the system to execute the rc0 script, for example: ss:Ss:wait:/sbin/rc0 shutdown < /dev/console > /dev/console 2>&1 s0:0:wait:/sbin/rc0 off < /dev/console > /dev/console 2>&1 The following operations are typical of those that result from executing the rc0 script and the commands located in the /sbin/rc0.d direc- tory: Notify users that the system is shutting down. Sync the disks Stop system services and daemons Stop processes Kill processes Unmount file systems Invoke init if the system is being shut down to single user The killall command sends a SIGTERM signal to stop running processes; SIGKILL follows to kill all processes except the process which initi- ated the call. The umount -a command unmounts all file systems except the root file system. FILES
Specifies the command path Specifies the directory of commands that corresponds to the run level RELATED INFORMATION
Commands: init(8), killall(8), rc2(8), rc3(8), shutdown(8) delim off rc0(8)
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