Infrastructure Ubuntu System setup and basic operation

I. directory structure of Ubuntu Series

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Second, theUbuntu System tree-type directory structure :

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/boot: This directory is the directory in which the system kernel is stored and the file that is required when the system starts.

/bin: This directory holds commands that are often used by all users.

/dev: This directory holds the interface device files.

/etc: This directory holds information about system settings and administration files.

/home: The default working folder for all normal system users (that is, the host directory, family directory).

/root: This directory is the host directory for Ubnutu system Administrator (Superuser)root , and by default, only root The user's host directory is under the root directory and not under "/Home".

/sbin: storage Ubnutu system to do basic management commands, general administrator users have permission to execute.

/usr: store Other user applications and are often divided into subdirectories for different types of applications.

/var: Some files that often need to change in the storage system, such as System log files, mailbox directories, etc., in the actual application system, the "/var" Directory is often divided into separate partitions.

Third, using the command line interface

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1. View the kernel version

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2. View CPU information

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3. View Memory

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4. View host name

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5. shutdown and restart Operation

Perform a "shutdown-hnow" or "poweroff" command to completely shut down.

You can restart the Linux system by executing the "shutdown-rnow" or "reboot" command .

When executing the "shutdown" command, use "+ minutes" to indicate the shutdown or restart operation after the specified number of minutes.

For delayed shutdown, restart operation, press CTRL + C if necessary, or the "shutdown-c" command is canceled by another administrator after logging in to another terminal.

This article from "It essay" blog, declined reprint!

Infrastructure Ubuntu System setup and basic operation