Linux

Parsing of key macros:Container_of (Ptr,type,member);//You can return the address of the parent structure containing the list_head.Http://www.embedu.org/Column/Column433.htmReference: Working with instancesHttp://www.cnblogs.com/Anker/archive/2013/12

Grep: Text Filtering tool, (GREP,EGREP,FGREP) Sed: Text Editing Tool, Awk: Text Report Generatorgrep: Function Text Search tool to step through the target file matching checks according to user-specified ' mode, print matching linesgrep

Top Linux system Neutral analysis tool that shows the resource usage of each process in real-time, similar to the Resource Manager in Windows.The free command shows memory usage, total,used,free,buffer,cache,avaiable. -w command to get Buffer,cache

Job One:1) Add a 15G SCSI hard disk before opening the Linux system2) Turn on the system, right click on the desktop, open the terminal3) for the newly added hard disk partition, a primary partition size of 5G, the remaining space to the extended

Linux BasicsFirst, the Network Foundation1. Ifup network card name; ifconfig network card name IP subnet Its modification is only temporary, once the shutdown or restart command fails, you need to modify the configuration file to take effect

/: root directory, there is only one root directory under Linux./bin,/usr/bin: Directories that can perform binary files/boot Place the Linux kernel file:/boot/vmlinuz system boot:/boot/grub/dev: A device file that stores a Linux system;

Tar Packagetar-cvf/test/abc.tar/test/* #打包, first write the name of the tar package, write the content to be packaged, if the absolute path is written, then the Directory page will be packaged inTAR-CVZF #调用gunzip Compressed Tar PackageTAR-TF

about dynamic libraries and static libraries, here is not much to explain, how to create their own dynamic library and static library, previously mentioned, detailed content stamp links .Static libraries are a way of exchanging space for time and

System EnvironmentUbuntu 16.04on the Zabbix server sideInstalling SendMailsudo Install SendMailTest Send mailEcho " The Text! " | mail-s title [email protected]After successful, continue to install the mail server. Ubuntu System for

Basic commands (File Content Management)1.cat: Display text file contents at current terminalFormat: Cat [File path]-N number of line numbers for all outputs starting from 1-B is similar to-N, except that the blank line is not numbered;2.head:

1.FASTQC is running in a Java environment, so before installing FASTQC, there should be a Java Runtime Environment (JRE) under Linux. And the Java version should be at 1.8.0 version2.java installation: Download the latest version of Java, and note

11. Find the SVN installation path my is/home/ssl/repos/rogue_server/conf/(if not know, can search: Find/-name SVN)32, enter the directory of the Conf, which contains Authz, passwd, Svnserve.conf of three files53, enter passwd, add the SVN account

These days, operation and maintenance company three servers, a small partner seems to top command not too cold, I told him to Baidu (do not understand Google Baidu programmer is not a good cook), and then suddenly found that maybe I should tidy up

When you see the output of Linux under the column crooked, is not looking very uncomfortable? The column command makes it easy to solve the problem.Example:We generally only use this one of the above methods.Other ways to use column include the

Linux file structure to see what each folder is used for/bin binary Executable command/dev Device Special files/etc system administration and configuration files/ETC/RC.D startup configuration files and scriptsThe base point of the home user

2017-05-20The party returned as always to see the badminton game, and then think of a few days ago and friends to discuss the problem of the reverse mapping, or a brief summary under, lest forget again later! But when I add time ... This is a little

basic knowledge of vim coding:1, there are 3 variables:encoding : This option makes the text used for buffering ( the file you are editing ) , registers, Vim script file and so on. You can think of the "encoding" option as a setting for the internal

1. Command parserShell-----UNIX Operating systemBASH------Linux operating systemEssence: invokes the corresponding executable program according to the name of the command.2. Linux shortcut keys:Historical command: HistoryTraverse up: Ctrl+pTraverse

The DD command copies a file with a block of the specified size and makes the specified conversion at the same time as the copy.How to use: DD [OPERAND]Parameter comment:  bs=BYTES        read and write BYTES  bytes at a time  (also see ibs=,obs=)   

File permissions are lost when you copy files from Linux to Windows and then to Linux.Workaround:After compressing the files, copy the compressed files to the Windows system, then copy the compressed files to the Linux server and perform the