Switching between Ubuntu graphics mode and Linux command line mode

This article describes the Linux graphics mode and Linux command line mode switching essentials. The following is a detailed description of this execution:

CTRL+ALT+F2 command line mode

CTRL+ALT+F7 Graphics mode

I am installing the Ubuntu version, and the other versions are not so studied.

The following is the boot to enter the Linux command line which mode of the setting: (I installed in the Ubuntu I have seen no inittab files, really strange)

$gedit/etc/inittab

For example, to change the Id:5:initdefault 5 to 3, is the Linux into the system, the original is directly into the X interface mode, now directly into the Linux command line mode:

0: Downtime (remember not to configure the Initdefault to 0, because this will make Linux not boot)

1: Single-user mode, just like the security mode under Win9x.

2: Multiple users, but no NFS.

3: Full multi-user mode, the operating level of the benchmark.

4: Usually not, in some special cases you can use it to do something. 5:x11, that is, into the X-window system.

6: Reboot (remember not to configure the Initdefault to 6, as this will allow Linux to restart continuously).

Where run level 3 is the Rule Console character interface pattern we want to enter.

The above is the Linux graphics mode and the Linux command line mode of switching the essentials, look forward to you can help.