In a Linux environment, you can view recently typed commands with the arrow keys up and down. But this method can only be viewed one by one, in fact the system provides a way to view all the historical commands. In the terminal, enter the following command to see all the commands: History [[Email protected] ~]# History1 ifconfig 2vim/etc/SSH/Sshd_config3/etc/init.d/sshd Restart4vim/boot/grub/grub.conf5vim/etc/selinux/Config6vim/etc/sysconfig/netwo
The design defect of Ao you browser may lead to the reading of sensitive information such as user favorites/historical records.
A series of problems caused by design defects
Considering the user experience, the Browser allows the * .maxthon.cn domain to call some privileged APIs,For example, modify the homepage:Maxthon. browser. config. ConfigManager. set ("maxthon. config", "browser. general. startpage", "http://wooyun.org ");Any * .maxthon.cn can ca
PLC state machine programming Article 4-historical state processing, plc Article 4
Today, we add the previous control task to the historical state. This task will be complicated. For such tasks, we tend to automatically generate PLC programs and write them by ourselves, which is prone to errors. But for demonstration, we can try it. Let's get down to the truth. below is our control task.Control Task
This
I know that python3 is not compatible with python2. It is partly because of historical reasons. Which of the following functions are commonly used in php? What are the reasons for the inconsistency between naming rules and parameter applicability and subsequent functions? I know that python3 is not compatible with python2. It is partly because of historical reasons.
Which of the following functions are com
In Windows, you can also use osw to trace the historical system performance.1. difficult background of Windows System Performance Analysis
In Linux/Unix, to keep track of historical performance, we generally deploy nmon for performance monitoring collection and storage, but it is not in Windows.
For Windows systems, it is always difficult to analyze historical p
Long time no reading, suddenly want to read a history to improve their own force lattice. Then on the Internet to download the original text of the historical records.Because do not know is not complete, so whim, want to count the total number of words, see is not the basic complete. OK, say dry, can use a lot of languages, C #, PHP, JAVA, C + +, PYTHON, VB, can be. Which one? Python has just come in contact, very fresh, just you. Unexpectedly, sudden
What is a historical object (version object)? (If you have a name, you do not know whether a professional name exists)In some systems, we often encounter the problem that the processed object is a historical object.
For example, we have an order.There are multiple products in the order, and the user may modify the product (such as price, name, tax, etc ,... The Philosophical Language is today, not yesterda
itself exists in order to make the big business more convenient, and later by the People play bad (recently by Apple large-scale revocation).
This is only the majority of the current repackaging logic is not followed up, it is estimated that a period of time should be compatible back. However, all applications that have already been in the package cannot be installed on 8.1.3 unless they have been restarted. And the Enterprise certificate is often abused to cause Apple to revoke, and then use
1. Database Historical Data cleanup
#创建历史表
CREATE TABLE Ag_alert_record_history Asselect * from Ag_alert_record;
SELECT * from Ag_alert_record wheremessage_time between sysdate-90 and sysdate order by message_time Desc;
#删除ag_alert_record中90天之前的数据
Delete from Ag_alert_record where Message_time >= trunc (sysdate-20) and Message_time
--delete from Ag_alert_record wheremessage_time
#job启动, the Job 1th day to sync the first 1 days of data to the h
When you set Linux to view the execution time of historical commands, we all know that on the Linux platform, you can use the history command to view the commands that have been recently executed. However, the history command displays only numbers and commands by default, I only know that the command is recently executed, but I do not know the specific execution date, time... when you set Linux to view the execution time of
The threshold value set by Oracle does not capture all SQL statements, so it is normal to see some historical SQL Execution plans. In Oracle9i, we can set
The threshold value set by Oracle does not capture all SQL statements, so it is normal to see some historical SQL Execution plans. In Oracle 9i, we can set
Some netizens recently mentioned why the historical
I. Note: Some tables in the OLTP database have a large amount of data and a large amount of data is continuously increased every month. Because historical data is not accessed in this database, it is analyzed in another OLAP database, therefore, historical data will be migrated to the OLAP database. A better way to migrate this type of historical data is to use a
This article mainly introduces php's functions such as forward and backward Implementation of historical records based on two-way cyclic queue, and analyzes in detail the related skills and implementation methods involved in php's history usage function, has some reference value,
This article mainly introduces php's functions such as forward and backward Implementation of historical records based on two-way
It is inconvenient to use SQL * Plus on Linux, that is, there is no historical callback function. Ldquo can be used for SQL * Plus on Windows; up to rdquo; Arrow
It is inconvenient to use SQL * Plus on Linux, that is, there is no historical callback function. Ldquo can be used for SQL * Plus on Windows; up to rdquo; Arrow
In Linux, SQL * Plus is quite inconvenient, that is, there is no
PHPCookei is the code used to record the user's historical browsing information. PHPCookei code used to record historical user browsing information. phpcookei [basic] common Cookie methods: $ _ COOKIE ['recordluhuidudu] get Cookiesetcookie ('recordluhuidudu, ", time () PHP Cookei code that records the user's historical browsing information, phpcookei
[Basics]
Co
following starts to start anew.The February River novel "Emperor Yongzheng"The February River's novel "Emperor Yongzheng" is the second part of the "Emperor series" novel, it does write wonderful, the story is simple and complex, the character plump backbone, worthy of the famous two words. The historical novel is a total of three copies, interlocking. Many people like nine son Rob entropy of infighting, of course, is thrilling, can't stop, but Eagle
Start today to do the most important functions to send and receive messages, to get local historical data.First up to date:The first is to introduce a data storage module into the XMPPFramework.h:Import of the chat log module #import "XMPPMessageArchiving.h" #import "XMPPMessageArchivingCoreDataStorage.h" #import " Xmppmessagearchiving_contact_coredataobject.h "//Closest contact #import" Xmppmessagearchiving_message_coredataobject.h "The data storage
After running SQL statements in Linux sqlplus, you can use the up and down keys to find out the historical commands.
After running SQL statements in Linux sqlplus, you can use the up and down keys to find out the historical commands.
After running SQL statements in Linux sqlplus, you can use the up and down keys to find out the historical commands.
Follow th
First 10 historical articles on python crawling Public Accounts (1 ),
As a programmer, you must always be curious and want to learn.
Exercise how to use sogou to crawl historical articles with a specified public account. It is very difficult to crawl the public account. Thanks to sogou for providing a platform for crawling data.
The Code section is referenced in: https://github.com/Chyroc/WechatSogou/tre
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