Linux

GDB OverviewGDB is a powerful UNIX program debugging tool released by the GNU Open source organization. Perhaps, you prefer that graphical interface, such as VC, BCB and other IDE debugging, but if you are in the UNIX platform to do software, you

Know his watch, and it needs to know its meaning. Apt = Advanced Packaging Tool AR = archiver As = Assembler awk = "Aho Weiberger and Kernighan" The first letter of the last name of three authors bash = Bourne Again SHell BC = Basic (Better)

1. Unzip:The software package with the tar.gz extension under Linux is a package that is packaged with a tar program and compressed with the GZIP program. To install this package, the package needs to be decompressed, the package can be decompressed

1. Socket overviewSockets are intended to be sockets, which are used in networks to describe how different programs in a computer communicate with other computer programs.There are 3 types of sockets commonly used:1) Flow socket (Sock--stream): The

Create a user, set a password, modify a user, delete a user:Useradd testuser Create user TestUserpasswd TestUser set a password for the created user TestUserDescription: The newly created user will create a user directory under/home TestUserUsermod--

Readlink, you can see from the literal meaning that the output symbolic link value or authoritative file name. The readlink command parameters under OpenWrt are as follows:[email protected]:/# readlink--helpBusyBox v1.22.1 (2016-05-16 12:27:19 CST)

There are three types of Linux scheduled tasks:at: Specify a time to perform a task (one or more tasks, once executed, not used)Cron: Perform tasks automatically based on a schedule (with one or more tasks, periodically)System-level scheduled tasks

The Linux Find command searches the directory structure for files and performs the specified actions. The Linux Find command provides quite a lot of search files and is very powerful. Because find has powerful features, it has a lot of options, and

Load is an important indicator of the Linux machine, which intuitively reflects the current state of the machine. If the machine load is too high, then the operation of the machine will be difficult.Linux has a high load, mainly due to CPU use,

When you debug a program under a Linux terminal, you sometimes need to output a lot of information. If you can control the color and display of the font, you can make the output information sharp contrast, easy to observe the data during

Chown the owner of the specified file to the specified user or group, the user can be either a user name or a user ID; a group can be a group name or a group ID; a file is a space-separated list of files to change permissions, and wildcard

SSH Service Architecture: C/SS-End: 192.168.100.151C End: 192.168.100.150S-End Operation:Yum-y Install openssh-clients openssh-server OpenSSH # #安装ssh/etc/init.d/sshd startChkconfig sshd onC-terminal operation: Remote linkLinux systems:Yum-y Install

Execute make instructions with root privilegesBack to user permissions, view page.c, to assign the appropriate processFind the Process Control for GeditView gedit corresponding address and corresponding information, according to hexadecimal number 80

Tag:command   linux    root directory         linux the Find command searches the directory structure for the file and performs the specified action. The Linux Find command provides quite a lot of search criteria and is powerful. Because find has

To view the status of a file or directory:[[Email protected] ~]# SVN status online/#正常情况下没显示[Email protected] ~]# SVN status online/ #如果有变动会有如下显示 "? : Not in SVN control; m: Content modified; C: conflict; A: Scheduled to be added to the repository;

In the Linux environment, we usually use GCC to compile C code into an executable file, as follows is a simple example:Small experiment: HELLO.C#include #include void main(void){ printf("hello world!\r\n");}An executable file can be compiled with

One, concurrency and competition Concurrency refers to the simultaneous execution of multiple execution units, which can easily lead to race when accessing shared resources, such as hardware resources, global variables of software, and

Accustomed to the Mac programmer back to the Linux development platform always feel a bit uncomfortable, this is because the interface of Linux is not as beautiful as the Mac, and the Linux Package Manager is not as powerful as the homebrew on the

In the process of using Linux, we will be familiar with various commands, occasionally we can not help but ask how these commands are implemented, learning they are actually learning Linux advanced system programming very fast method.The source of

Install the Nvidia driver for Ubuntu 16.04 to solve problems such as hot fan conversion in the notebook Some old laptops may not be compatible with the latest Ubuntu 16.04, and some problems may occur during installation. For example, the heat is