Linux

Sighup Hung (hangup) SIGINT interrupted when the user presses the ^C key or ^break key from the keyboard Sigquit exits, when the user presses the QUIT key from the keyboard Sigill Illegal Instruction Sigtrap Tracking Trap (trace trap), starting

Thread: is created in a process, and it reaches the lifecycle of the process. Thread it allows a process to execute one or more execution paths (that is, 1 processes can have multiple threads to execute different programs), and these execution paths

This is a column about POSIX threading programming. The author, on the basis of clarifying concepts, will give you a detailed account of the POSIX line threading API. This is the first article that will tell you about the creation and cancellation

Many colleagues who have just moved from Windows to Linux are often accustomed to press CTRL + S to save their content when they edit a program with VIM. As everyone knows, this is not tight, the entire terminal is no longer responsive. In fact,

1. Download the Cross compilerftp://ftp.arm.linux.org.uk/pub/armlinux/toolchain/Select cross-3.2.tar.bz2 or cross-3.2.tar.gz (I choose cross-3.2.tar.gz

We modify the Readme.txt file, such as: Git is a distributed version control system. Git is free software. To understand the current state of the warehouse, use git status , such as: $ git Status # on branch Master # Changes don't staged for

(ii) GCC tool chain 1.GCC is the GNU Compiler collection The GNU compiler family 2. Simple compilation Example: #include int main () { printf ("Hello world!\n"); Return0; } Compile instruction gcc Test.c-o test to generate the test

A spring boot project, if packaged into a jar file, can be separated from the IDE and started directly through the Java-jar command, which is convenient. Maven Project The first way: IntelliJ idea under Start First modify the packaging of the Pom as

The SEQ command is used to print numbers to the mantissa starting with the specified increment, that is, to produce all integers from one number to another, and to control the format, width, and split symbol of an integer. Grammar: [1] seq [option]

First look at the fork system call, the source code is as follows: _sys_fork: Call _find_empty_process #这个函数用来取得一个pid, if a negative number directly exit testl%eax,%eax JS 1f push%gs pushl%esi pushl%edi pushl%ebp pushl%eax

The typical Linux Samba service is all loaded and goes directly into the/etc/samba directory. Open smb.conf, [Gloabal] Inside is some global options, affecting all the sharing, the main to modify is the security= option, the default is Security=user

Common base commands, only for records mkdir and RmDir [rmdir cannot delete non-empty directories] Mkdir-p/usr/xx/bb [recursively create directory]Mkdir-p Rcha/{xx,yy,zz} [Create Xx,yy and Zz3 parallel directories under Rcha directory]Tree

Tar command Unpack: Tar zxvf Filename.tar Packing: Tar czvf filename.tar dirname GZ command Decompression 1:gunzip filename.gz Decompression 2:gzip-d filename.gz Compression: gzip FileName . tar.gz and. tgz Decompression: Tar zxvf

1. Open the device snd_pcm_t *handle; /* Open PCM device for playback. * rc = Snd_pcm_open (&handle, "Default", snd_pcm_stream_playback, 0); The IF (RC 2. Non-blocking writing (in general, the blocking way to write code is good, ALSA

transfer from https://www.cnblogs.com/jxrichar/p/9248480.html To install in the/usr/local directory as an example1. Download the installation package address: https://dev.mysql.com/downloads/file/?id=476936, save the installation package

1 Create a new two folder one to store the installation files, one to store the extracted filesMkdir-p/export/software // store installation files mkdir-p/export/servers // store extracted files2 Place the JDK files in the software folder on

Linux is a multi-user time-sharing system, want to use system resources, you must have a legitimate account password.UID and GIDNormal user root user system userThe UID equivalent to the school number GID equivalent class, each student has a unique

Operation and Maintenance Foundation mainly includes Linux entry, file management and redirection, user group permissions, text processing and software management. Linux Introduction: This is relatively simple, mainly introduces the history of

#创建路径和用户Mkdir-p/data/app/tomcat8#解压tomcat包Wget-p/data/download http://mirrors.tuna.tsinghua.edu.cn/apache/tomcat/tomcat-8/v8.5.32/bin/apache-tomcat-8.5.32.tar.gzTar-xvf/data/download/apache-tomcat-8.5.32.tar.gz-c/data/app/tomcat8#修改conf/tomcat-users.

First on the Windows system, unblock the guest user:Set the folder in the C drive in the ABC attribute, select Share, and add the permissions for everyone to confirm:Enter secpol.msc in the command box to enter the Local Policy dialog box:First