From b08f4096533577934b885fa9df41d3881d141612 Mon Sep 17 00:00:00 2001 From: Gerard Beekmans Date: Thu, 15 Feb 2001 15:26:52 +0000 Subject: Initial XML commit git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@174 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689 --- appendixa/sysvinit-desc.xml | 160 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 160 insertions(+) create mode 100644 appendixa/sysvinit-desc.xml (limited to 'appendixa/sysvinit-desc.xml') diff --git a/appendixa/sysvinit-desc.xml b/appendixa/sysvinit-desc.xml new file mode 100644 index 000000000..4f8603ab2 --- /dev/null +++ b/appendixa/sysvinit-desc.xml @@ -0,0 +1,160 @@ + +Contents + + +The Sysvinit package contains the pidof, last, lastb, mesg, utmpdump, +wall, halt, init, killall5, poweroff, reboot, runlevel, shutdown, +sulogin and telinit programs. + + + + +Description + +pidof + + +Pidof finds the process id's (pids) of the named programs and prints +those id's on standard output. + + + + +last + + +last searches back through the file /var/log/wtmp (or the file designated +by the -f flag) and displays a list of all users logged in (and out) +since that file was created. + + + + +lastb + + +lastb is the same as last, except that by default it shows a log of the +file /var/log/btmp, which contains all the bad login attempts. + + + + + +mesg + + +Mesg controls the access to your terminal by others. It's typically +used to allow or disallow other users to write to your terminal. + + + + +utmpdump + + +utmpdumps prints the content of a file (usually /var/run/utmp) on +standard output in a user friendly format. + + + + +wall + + +Wall sends a message to everybody logged in with their mesg permission +set to yes. + + + + +halt + + +Halt notes that the system is being brought down in the file +/var/log/wtmp, and then either tells the kernel to halt, reboot or +poweroff the system. If halt or reboot is called when the system is not +in runlevel 0 or 6, shutdown will be invoked instead (with the flag -h or -r). + + + + +init + + +Init is the parent of all processes. Its primary role is to create +processes from a script stored in the file /etc/inittab. This +file usually has entries which cause init to spawn gettys on each line that +users can log in. It also controls autonomous processes required by any +particular system. + + + + +killall5 + + +killall5 is the SystemV killall command. It sends a signal to all +processes except the processes in its own session, so it won't kill the +shell that is running the script it was called from. + + + + +poweroff + + +poweroff is equivalent to shutdown -h -p now. It halts the computer and +switches off the computer (when using an APM compliant BIOS and APM is +enabled in the kernel). + + + + +reboot + + +reboot is equivalent to shutdown -r now. It reboots the computer. + + + + +runlevel + + +Runlevel reads the system utmp file (typically /var/run/utmp) to locate +the runlevel record, and then prints the previous and current system +runlevel on its standard output, separated by a single space. + + + + +shutdown + + +shutdown brings the system down in a secure way. All logged-in users are +notified that the system is going down, and login is blocked. + + + + +sulogin + + +sulogin is invoked by init when the system goes into single user mode +(this is done through an entry in /etc/inittab). Init also tries to +execute sulogin when it is passed the -b flag from the bootmonitor (eg, LILO). + + + + +telinit + + +telinit sends appropriate signals to init, telling it which runlevel to +change to. + + + + + + -- cgit v1.2.3-54-g00ecf