Linux File storage directory detailed

/etc store various configuration files

• /etc/inittab control startup mode     

  [email protected] ~]# Cat/etc/inittab

  # Inittab is a used by upstart for the default runlevel.

  #

  # ADDING Other CONFIGURATION here would have NO EFFECT on YOUR SYSTEM.

  #

  # System initialization is started by/etc/init/rcs.conf

  #

  # individual runlevels is started by/etc/init/rc.conf

  #

  # Ctrl-alt-delete is handled by/etc/init/control-alt-delete.conf

  #

  # Terminal Gettys is handled by/etc/init/tty.conf and/etc/init/serial.conf,

  # with configuration In/etc/sysconfig/init.

  #

  # For information on what to write upstart event handlers, or how

  # Upstart works, see Init (5), init (8), and Initctl (8).

  #

  # Default RunLevel. The runlevels used is:

  # 0-halt (do not set Initdefault to this)(off)

  # 1-single User Mode (single-user)

  # 2-multiuser, without NFS (the same as 3, if you don't have networking) (multiuser mode)

  # 3-full Multiuser mode (command line mode)

  # 4-unused (not used)

  # 5-x11 (desktop mode)

  # 6-reboot (do not set Initdefault to this)(restart)

  # Id:3:initdefault:

1. View Run Level
   

   [Email protected] ~]# RunLevel

   N 3

2. Different mode switching

   Init number

Linux File storage directory detailed