(thing) by Rancid_Pickle Sun Nov 26 2000 at 11:55:47
UNIX systems (including HP-UX, IRIX, Linux and Solaris flavors) all use the init command to set the initialization process.

  • init 0
    Shut down the entire system to a halted state. Basically powers off the system or PROM monitor mode.

  • init 1
    Places the machine into admin mode. All file systems are accessible, but only a superuser console can access the system.

  • init 2
    Normal multiuser mode.

  • init 3
    Normal multiuser mode with remote file sharing.

  • init 4
    Custom user-defined multiuser environment. In HP-UX, the VUE is loaded.

  • init 5
    Shut down the system like init 0 but do not power off.

  • init 6
    Shut down the machine and restart as init 2 or 3.

  • init a,b,c
    Not a true init state, but allows programs to be set to run.

  • init S,s
    Normal single-user mode. This mode is the default should the inittab be missing or corrupted.

  • init Q,q
    Do not change init levels, but re-examine the inittab file. This way you can use changes without rebooting.

    • I like it! 2 C!s