sleep 5

Demo Effect: 1, the first level menu 2, Level two menu 3. Perform operation Script reference: Copy Code code as follows: #!/bin/bash #author Lic (Oldboy Linux student) #date 1304 disk_no= "/DEV/SDA1" Nginx_dir= "/usr/local/

Now,curdate,curtime,sysdate differences in MySQL1.now returns the time, in the following format: 2013-01-17 10:57:13Mysql> Select Now (), Sleep (5), now ();+---------------------+----------+---------------------+| Now () | Sleep (5) | Now () |+------

Transfer from http://blog.csdn.net/elbort/article/details/7594772Sigprocmask function:Function Description:Sets the processing mode (blocking or non-blocking) of the signal within the signal shielding set.Usage:#include int sigprocmask (int how,

Does PHP have the function of executing the task several seconds later? For example, if there is a code segment, first execute the first line, and then execute the second line after 5 seconds. Note that, instead of a loop, the code is executed in

There is no real multi-threading in the shell, and to implement multithreading you can start multiple back-end processes to maximize CPU Performance.Look directly at the code Example.(1) Sequential execution of code1#!/bin/Bash2 Date3 forIinch`seq 1

In MySQL, both now () and sysdate () two functions can return the current time, but there is a difference between the two. Let's take a look at the official MySQL explanation: NOW()Returns a constant time that indicates the time at which the

Does PHP have the function of executing the task several seconds later? For example, if there is a code segment, first execute the first line, and then execute the second line after 5 seconds. Note that, instead of a loop, the code is executed in

Does PHP have the function of executing the task several seconds later? For example, if there is a code segment, first execute the first line, and then execute the second line after 5 seconds. Note that, instead of a loop, the code is executed in

Sigprocmask function: Function Description: Sets the mode of processing (blocking or not blocking) the signal within the set of the signal shield. Usage: #include int sigprocmask (int how, const sigset_t *set, sigset_t *oldset); Note:if

Web applications are mostly IO-intensive, and using Ruby's multi-process + multithreaded model will greatly increase system throughput. The reason for this is that when a ruby thread is in the IO block state, other threads can continue to execute.

Description: 8 tomcat running on a single serverCase in the way:#!/bin/Bash#reboot Tomcat!!!#Author: FansikEcho-E"\033[1;42;31mchoice TOMCATNO REBOOT!!! \033[0m"CatEOF1: Reboot tomcat80812: Reboot tomcat80823: Reboot tomcat80834: Reboot tomcat80845:

Some may be confused: Isn't tornado advertised that asynchronous non-blocking solves the 10 k problem? However, I found that not torando is not good, but you used it wrong. For example, you recently discovered one thing: a certain

Does PHP have a function to perform in a few seconds interval? For example, there is a piece of code that executes the first line, then the second line after 5 seconds. Note that it is not a loop, it is executing code from top to bottom, and it

Less-9We can see "time-single quotation mark" from the headline, so it is obvious that we should use the delay injection, while the ID parameter is ' processing. Here we approximate the method of time-lapse injection.Here, use the sleep ()

Tornado asynchronous request non-blocking preface Some may be confused: Isn't tornado advertised that asynchronous non-blocking solves the 10 k problem? But I found that not torando is bad, but you used it wrong. for example, a website is slow to

Although SQL injection has a lot of contact, in fact, not too much, but not the system, then through the sqli-libs system learning to summarize itNote: The first one to say in detail, the back of the new knowledge will be said, so the first must

Jinan Fu Cai net has SQL injection. Cause leakage of other databases Last time it was Guangdong de.This time, the account has no money to decrypt the token 5. Boring background Jinan Fu caiwangHttp://www.jnscp.cn/Http://www.jnscp.cn/detailNews.jsp?

One, multi-threaded Python's standard library provides two modules: _thread and threading , is the _thread low-level module, threading is the Advanced module, the _thread encapsulation. In most cases, you only need to use threading this module.

There are a lot of lnmp/lamp on the web. The installation of a script, the compilation of installation parameters to modify the script, this script integrates lamp and LNMP, in any network of Red Hat or CentOS server automatically configured LNMP or

Perl as an explanatory language, is very popular with the system administrators, the benefits of not much to say, the disadvantages of many, such as the support of the thread has been not good, so most of the time, we need a number of processes to