Zhangminghui-linux Common Catalogue-3

Features of the Linux directory structure

1, hanging upside down the tree

2,/root is the vertex of the Linux directory

3. Directory and disk partitions are not associated

4,/root directory may correspond to different partitions or disks

/etc/fatab automatically mount configuration files

Linux devices are also files, do not mount is not visible to the portal, if you want to access the device must give the device a portal, the entrance is a mount point, using Mount Mount

For example, mount the optical drive: the optical drive is also a device/dev/cdrom

[[email protected] ~]# Mkdir/mnt/cdrom Create a directory of mounted devices

[[email protected] ~]# mount/dev/cdrom/mnt/cdrom/mount the optical drive device file to the directory

[[email protected] ~]# ls/mnt/cdrom/View the contents of a mounted device

[[email protected] ~]# df-h View mount point

To view the automatic mount configuration file

Configure the boot automatically mount disc file

The Linux directory hierarchy also has standard FHS (Filesystem Hierarchy standard file system hierarchy standards)

/bin/lib/sbin/tmp

/usr also has a directory of the same name/usr/bin/usr/lib//usr/sbin/usr/tmp

/ETC/MOTD Prompt after successful login

/bin the directory in which the binary command resides

/boot Linux kernel and the file directory where the system boot program is located, when installing the system partition, it is generally divided into a boot partition (100m-200m is enough)

The directory where the/dev device file resides

The directory where the/etc configuration file resides

yum,rpm Install the software, the path of the default configuration file is placed in/etc

To start or shut down a service with a configuration file, such as restarting the NIC [email protected] ~]#/etc/init.d/network restart

/etc/resolv.conf can set DNS, network card profile can also set DNS, network card configuration file takes precedence. Restart the NIC, the DNS configured by the NIC is overwritten after the DNS of the/etc/resolv.conf configuration

/ETC/INIT.D a configuration file that stores some services and can start or close some services as in the/ETC/RC.D/INIT.D directory

/etc/sysconfig/network-scripts/ifcfg-eth0 NIC eth0 configuration file

/etc/sysconfig/network Host name configuration file

/etc/fstab Setting the configuration file of the disk to be mounted

/etc/inittab Setting the boot run level

/etc/redhat-release Linux System version information

/ETC/MOTD Post-Login prompt information

Zhangminghui-linux Common Catalogue-3