Linux Learning 1

Here is mainly a summary of some things to listen, thanks to lamp brother

____ Installing the virtual machine

VMware 8.0.4, because the high version occupies a large space, no need

Cent OS 6.3 Linux version

____linux system

1, partition

Primary partition Max 4

Extended partition, Max 1, and, extended partition + primary partition Max 4

The extended partition itself cannot be used to hold data, only for logical partitions

2, formatted (advanced format): Write to File system

File System win:fat16, Fat32,ntfs

LINUX:EXT2,WXT3,EXT4 (cent OS with this)

Format includes, 1) partition block, small partition, eg 4KB

2) Determine a node number, which is equivalent to the room

3, partition device file name. Define the device file name for each partition

Hardware Device file name

IDE/DEV/HD[A-D]

SCSI/SATA/USB/DEV/SD[A-D]

SATA speeds up to 500mb/s, faster than other types, and now uses SATA, so you will often see

/dev/sda1

The above 1 represents the partition number, which can only be 1-4.

Logical partition counting starting from 5

4, mount to each partition allocation mount point, Mount point is an empty directory

Equivalent to the allocation letter in win

Required Partitions:

/root Partition

Swap partition (swap partition, Memory 2 bay, not more than 2GB)

Recommended partitions:

/boot (boot partition, up to MB)

--------

The root partition is a primary directory,/boot,/etc, and/home is a level two directory, but the physical storage space for/boot, and/home directory is separate from the root directory, not in an address area. (See figure more intuitively,/boot,/home has a separate area, but they are subordinate to the/root directory.)

----------

_____ Learning Linux Considerations

1,linux Strictly case-sensitive

2, all content is saved in file form, including hardware,

Hard disk File:/dev/sd[a-p]

Disc File:/dev/sro

3, Linux does not differentiate file types by extension, file types are defined in file permissions

The extension is just a bit more intuitive, not mandatory.

Compressed package *.gz, *.bz2, *.tar.bz2, *.tgz

Binary packages. rpm

Script *.sh

Web page file *html, *php

Configuration file *.conf

4, all Linux storage devices must be mounted before the user can use them. (win in its own detection, can be used directly)

_______ Server Management and maintenance recommendations

Command: Binary file

/bin/,/sbin/,/usr/bin/,/usr/sbin/

Above, S represents the heart of only/root root directory super User

USR representative cannot execute under single user, single user equals win in secure mode

/boot/at! Backup will not start up otherwise

/dev/

/etc/configuration file at! Backup

/home/General User Home Directory

Library functions for/lib/systems

/lost+found/

Mount Directory, mount point, any directory is possible, not mandatory

/media/Multimedia

/MNT/U Plate

Shared directory for/MISC/NFS services

/opt/third-party software, which is actually more commonly used/usr/local/, is equivalent to programs in Windows

/proc/

/sys/

Linux Learning 1