Several Basic linux commands

Several Basic linux commands-general Linux technology-Linux technology and application information. For details, refer to the following section. Shutdown-h now
Sudo-sH
Shutdown-h now

Restart shutdown-r now

Reboot is not recommended for quick restart.
Init 0 shutdown init 6 reboot
Halt system downtime

Init 3 5 1 Text Graphics Single User Interface startup

Default home directory
/Home/username

Useradd username create row user
Passwd username add Password
/Etc/passwd

Device Installation
Mount-t iso9660/dev/cdrom/mnt/cdrom
File-type device file Mount directory
Unmount umount/mnt/cdrom

Soft drive mount-t fdtype/dev/fdo/mnt/floppy

Man command to view the command manual page
Info view Command help
Command-help

Mkdir
Rm-r-f
Rmdir empty directory
Pwd Current Directory

Cd
Cd. Enter the current directory
Cd .. go to the last directory
Cd ~ Go to your home directory
Cd-go to the last directory as shown in the figure, which is equivalent to the return value in windows.

Ls-r recursion-l details-I displays the node information of the file
Ls parameter path file name

Ln command to create a file Node
Ln-s file name-hardlink
Ln-s file name-softlink create a soft Node

More/less File Viewing file type
Cat displays the content of the specified file
Mv mobile
Target of the mv parameter Source Address
-If
Cp parameter source address objective
-F overwrite-I indicates whether to overwrite-R Recursion

Fsck disk repair
Fsck option device name
-F type of the file system to be checked
-R: Ask the user to confirm the response.
-N simulated display does not actually check
-P automatically fixes security corrections and does not cause loss of up to nine
Fsck-p-t ext2/dev/hda2

Find Path Options
Find/etc-name passwd

Grep option search mode file name
Grep parameter 'str' filelinst
-I case-insensitive
-R recursive search

Chmod changes File Access Permissions
Chmod (ugoa) (+-=) (rwx) file name path
Chmod g + w o-x/usr/local /*

Diff
Diff parameter file 2
-W ignore space difference-I ignore case Difference

Cmp
Compare any connected files
Cmp parameter file 2