aix /etc/inittab info

root@wjlcnaix:/tmp>cat /etc/inittab

init:2:initdefault:
brc::sysinit:/sbin/rc.boot 3 >/dev/console 2>&1 # Phase 3 of system boot
powerfail::powerfail:/etc/rc.powerfail 2>&1 | alog -tboot > /dev/console # Power Failure Detection
mkatmpvc:2:once:/usr/sbin/mkatmpvc >/dev/console 2>&1
atmsvcd:2:once:/usr/sbin/atmsvcd >/dev/console 2>&1
load64bit:2:wait:/etc/methods/cfg64 >/dev/console 2>&1 # Enable 64-bit execs
tunables:23456789:wait:/usr/sbin/tunrestore -R > /dev/console 2>&1 # Set tunables
rc:23456789:wait:/etc/rc 2>&1 | alog -tboot > /dev/console # Multi-User checks
fbcheck:23456789:wait:/usr/sbin/fbcheck 2>&1 | alog -tboot > /dev/console # run /etc/firstboot
srcmstr:23456789:respawn:/usr/sbin/srcmstr # System Resource Controller
harc:2:wait:/usr/es/sbin/cluster/etc/harc.net # HACMP for AIX network startup
rctcpip:a:wait:/etc/rc.tcpip > /dev/console 2>&1 # Start TCP/IP daemons
mkcifs_fs:2:wait:/etc/mkcifs_fs > /dev/console 2>&1
sniinst:2:wait:/var/adm/sni/sniprei > /dev/console 2>&1
rcnfs:a:wait:/etc/rc.nfs > /dev/console 2>&1 # Start NFS Daemons
cron:23456789:respawn:/usr/sbin/cron
piobe:2:wait:/usr/lib/lpd/pioinit_cp >/dev/null 2>&1  # pb cleanup
qdaemon:a:wait:/usr/bin/startsrc -sqdaemon
writesrv:a:wait:/usr/bin/startsrc -swritesrv
uprintfd:23456789:respawn:/usr/sbin/uprintfd
shdaemon:2:off:/usr/sbin/shdaemon >/dev/console 2>&1 # High availability daemon
l2:2:wait:/etc/rc.d/rc 2
l3:3:wait:/etc/rc.d/rc 3


format of the line:
id:runlevel:action:command
id 只是标识号
runlevel 在何时启动 :: 运行级不管是多少都启动，决定运行坏境
action wait 前台启动；once 后台启动；off 注释；respawn 杀不掉
command init 子进程


telinit q 改运行级别