Linux system introduction and daily management

Linux system introduction and daily management

First, the Linux kernel:

The Linux kernel consists of 5 main subsystems:

Process scheduling (SCHED)

Memory Management (MM)

Virtual file System (VFS)

Network Interface (NET)

interprocess communication (IPC)

Common Connection Linue Server client:

SECURECRT 5.2.exe

WinSCP.exe

Uploading Files RZ

Download file sz

View current folder ll or LS Open folders cd folder

Return to the upper directory CD. /

Create a file Touch NewFile

Create folder mkdir Newdir

Move File/rename: MV Oldname

NewName

Delete file RM filename

Delete Folder Rm–rf Filefolder

Executes the command./fileaname

Compressed files Zip zipfilename.zip needtozipfilenames compressed folder zip-r Zipfilename.zip Allfilename Extract Files unzip Zipfilename.zip

Add the environment variable vi/etc/profile and then source/etc/profile configure the system self-booting vi/etc/rc.local

Remote copy: SCP localfilename [Email protected]:routename

Modify the network configuration vi/etc/sysconfig/network-scripts/ifcfg-eth*

Modify maximum file Usage ulimit number

View process Ps–ef|grep Name

Install package RPM,

To view the number of network connections: Netstat View CPU usage: Top

View command help: ifconfig-?/-h View network information: ifconfig

To link to a different server:

SSH [email protected]

To install the Java app Package:

1.rz upload the app package to the directory

2.chmod–r A+x makes it possible to perform

Configuring Environment Variables Java_home

Source/etc/profile

Java–version

• This article is from: Linux Tutorial Network

Linux system introduction and daily management