Detailed parsing of Linux memory usage methods

I am a programmer, so I am here to explain the use of Linux memory in a programmer's perspective.When it comes to memory management, the two concepts that flash in our minds are virtual memory, with physical memory. These two concepts are mainly

20165316 preparatory work 3 Linux installation and learning

Linux InstallationI downloaded the VirtualBox 5.2.6 and Ubuntu 17.10.1, feeling that the compatibility of these two versions was not very good, because I saw in the Oracle's official website community that many new versions of the issue were not

Linux Scheduler-User space interface

First, prefaceThe Linux scheduler is mysterious and tempting, and every Linux engineer wants to dive into its interior. But there is an old adage in China called "The Heart of Life", a module of ingenious internal logic (the so-called "heart") whose

Linux Interrupt Context

First, prefaceEvery Linux driver is aware of the criteria for not sleeping in the context of an interrupt. But why can't the kernel API that causes sleep be called in interrupt context? What would happen if the driver did this? This is the topic

Linux Show Funny time[liunx interesting things to show]

Linux Show Funny Time1. SLRun, train![Email protected]:~$ sudo apt-get install SL2. TelnetStar wars[Email protected]:~$ telnet towel.blinkenlights.nl3, CmatrixCode Screensavers[Email protected]:~$ sudo apt-get install Cmatrix4, OnekoMouse to change

Common commands for Linux system monitoring

Brief introductionLists the operating system level monitoring commonly used several methods, it is recommended to collect the useCpuThe top command can be used to monitor the overall load of the system, including CPU, memory usage, and real-time

Linux iSCSI Multi-Path Mount storage

Preparation: creates the LUN, divides the Llun into separate groups, joins the server's IQN information to the LUN if you put the default group, the hard disk information that is displayed when scanning iSCSI is all LUNs, May result in a false

How to use Linux common command last

Http://www.jb51.net/article/120140.htmRecently in the study of Linux commands, learned the last command, found that many students are not very familiar with the last command, the function of the previous command lists the current and the past logged

Linux commands (18) Compress or unzip files and directories gzip Gunzip

Directory1. Introduction to Commands2. Common parameter Introduction3. Example4. Direct access to the bottomIntroduction to CommandsLike the zip command, gzip for file compression, gzip compressed file extension ". gz",gzip Delete source files after

Linux git command in Chinese display garbled problem resolution: 274\232\350\256\256\346\200\273\347\273\223

When adding a file to be submitted using git Add, if the file name is in Chinese, it will display garbled characters such as 274\232\350\256\256\346\200\273\347\273\223.Solution: At the bash prompt, enter:FalseIf the Core.quotepath is set to False,

View the geographic location of the IP that is logged on to Linux (based on the last command)

Scripting Features: View the physical location of the IP address of the logged-on systemExecution mode: Bash login_city_info_use_taobaoapi.sh username[Email protected] storage]$ bash login_city_info_use_taobaoapi.sh root "IP": "119.4.254.195"

Unattended, automated installation of Linux operating systems

First, use the VSFTPD service to get the system source on the remote server (System source we use the ISO CD file, copy it to the FTP server directory)1, installation VsftpYum Install Vsftp2. Connect the system CD to the virtual machine and mount it

See CPU physical and logical numbers under Linux

[Plain]View PlainCopy [Email protected]:~$ cat/proc/cpuinfo processor:0 Vendor_id:genuineintel CPU Family:15 Model:2 Model Name:intel (R) Pentium (r) 4 CPU 3.00GHz Stepping:9 microcode:0x17 CPU mhz:2992.615 Cache size:512 KB

Path 2: Virtual Machine file sharing and network mode.

Path 2: Virtual Machine file sharing and network mode. On New Year's Eve, when other gods quit their old age with their family and welcome the new year, the bloggers did not dare to slack themselves. They thought about a year's plan and made plans

About grep Regular Expressions in Linux, grep Regular Expressions

About grep Regular Expressions in Linux, grep Regular Expressions Wildcard * Any character can be repeated multiple times Any character, repeat once [] Represents a character For example, [a, B, c] indicates any one of abc. Wildcard is used to match

Important issues for installing a Linux-based release (Process Guide) and a linux release

Important issues for installing a Linux-based release (Process Guide) and a linux release Install important issues based on the Linux distribution. (Process guidance ))   1. Description: The items recorded below are important for installing a

Summary of Common commands in Linux and summary of linux commands

Summary of Common commands in Linux and summary of linux commands Service -- status-all [service status] Service MySQL restart [restart database] Pstree-a [show complete commands for each program] Pstree-c [not applicable to exact

Linux instructions: Linux Command output headers, overlay two commands to obtain the headers and content, linux2

Linux instructions: Linux Command output headers, overlay two commands to obtain the headers and content, linux2Linux Command output Header When using Linux commands, if there is a pipeline "|" in the command, the header (title) information is lost

Build xl2tp server in CentOS 7.2 and build xl2tp in CentOS

Build xl2tp server in CentOS 7.2 and build xl2tp in CentOS # Download the xl2tpd.tar.gz source code package '''Wget http://pkgs.fedoraproject.org/repo/pkgs/xl2tpd/xl2tpd-1.3.8.tar.gz/d244fdcd88f64601b64b7302870afca8/xl2tpd-1.3.8.tar.gz'''   #2.

Linux Command: rcp command, linux Command rcp

Linux Command: rcp command, linux Command rcp Rcp stands for "remote file copy" (remote file copy ). This command is used to copy files between computers. The rcp command has two formats. The first format is used to copy files to files. The second

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