Linux Common commands Summary--keep adding

Let's start with a very useful command: history looks at the historical commands on the Linux machine.

View memory under Linux We generally use the free command: free-m

View hard disk Status: Df-h

View CPU Information: Less/proc/cpuinfo View CPU Cores: Less/proc/cpuinfo |grep ' model name '-C your Linux host character set (LANG): env | grep LANG

View Process: Ps–ef | grep MySQL

Kill process: Kill-9 port number

viewing ports: Netstat-ano | grep 3306

View folder size, and sort: Du-sh * | Sort-n

Effective after a firewall restart
Open: Chkconfig iptables on
OFF: Chkconfig iptables off

Firewall is in immediate effect and fails after reboot
Open: Service iptables start
Close: Service iptables stop

Create folder: mkdir log

Create file: Touchlog

Removal directory: Rm-rf/usr/lib64/mysql

Remove RM Log from File

Copying files: cp/mu/mu1

Copy directory: Cp-r one

Switch directory: CD

View file contents: Cat

Vim three modes: Command mode, insert mode, edit mode. Use ESC or I or: to toggle the mode.

: Q exit

: q! Force exit

: Wq Save and exit

Query Find/-name mysqlfind/-iname "*.CNF"-print Display Date: Date

LS Display file or directory

-l list File details L (list)

-a lists all files and directories under the current directory, including Hidden A (all)

Output Tomcat Run log
Tail-f/tomcat/logs/cataline.out

Xshell

SZ filename Download file

Linux Common commands Summary--keep adding