Linux Common command Usage __linux

1.. Parent directory. Current directory

2. cd+ files or directories--access to files or directories

3. pwd--Query Current directory

4. touch+ file-created when a file or directory does not exist

5. vim+ file--Edit file

①i into edit mode

②esc exit into general mode, this mode d deletes a character DD deletes a row

③:w Save: Q exit: q! Force exit

⑤yny p Copy Paste

6. mkdir [-P Recursive]+ directory--Create directory

7. LS [-A hidden file-l details-T in order List-R reverse sequence out]--query current directory information

8. RM [-R recursive-F enforcement] + files or directories--delete files or directories

9. groupadd-g GID + Group name--add group

Groupmod-g GID newgid--Modify Group ID

Groupdel + Group name--delete group

CHGRP + Group name + filename--Modify the group to which the file belongs

Useradd [-u uid-g gid-d user owned directory-s Shell] + username--Add user

Usermod [-u uid-g gid-d user owned directory-s Shell] + username--Modify user information

Userdel + Username--delete user

ID + Username--Query The UID GID of the user and the group to which they belong

Chown [R Recursive] + Username + file--Modify file Owner

Chown A (Main): B (Group) + file--Modify file owner: Group

chmod [-A all-u user-g group-o other] + permissions + Files--modifying permissions

Man + command/Command-h--command function query

cat/tac/more/tail/less + file-query file content

history--Query History Instructions

22.!+ command--the most recent instruction in the execution of history

passwd [F-Force] + user--set or modify password

MV Source Address Destination address--cut

CP [-A hidden file-v display details-R recursive-f-mandatory] Source address destination Address--copy

echo--Print Information

SU [-Switching working directory] + users--switching users

Ping + ip--query can be connected

ifconfig--Query Network card information

Chkconfig + [--list server boot-on open a service-off shut down a service] + service name

service+ Service name +[start Open Service Status Query service state Stop interrupt service restart restart service]

free-m--Memory Usage

df-h--Disk mount and usage

fdisk-l--disk information and partition fdisk+ disk directory--Managing disks

mkfs.ext4+ Partition Directory--format

MOUNT-T + type + partition Directory + mount point-mount

pvcreate+ Partition Directory--Create PV pvs--query PV

VGCREATE+VG name + partition Directory--Create VG vgs--query VG vgextend VG name + partition Directory--Add a partition to the volume group VG

Lvcreate-l size VG-n LV name--Create LV lvs--query LV lvextend-l size LV catalogue--Expand LV

Ssh/telnet + ip--Remote Landing