1. View the currently logged in user information who command: The default output of who includes user name, terminal type, login date and remote host. who /var/log/wtmp You can view every login since the wtmp file was created (1) -b: View the latest startup time of the system (2) -H: Print the title of each column users command: Print the currently logged in users, each displayed user name corresponds to a login session. 2. Check the command history. Each user has a command history. Check $HOME/.bash_history or enter: history3. last command in the terminal to check the user login history. This command will read the /var/log/wtmp file; /var/log/btmp can display remote login information. &a
1. Summary on the command history notes
# #Introduction: 1. View the currently logged in user information who command: The default output of who includes user name, terminal type, login date and remote host. who /var/log/wtmp You can view every login since the wtmp file was created (1) -b: View the latest startup time of the system (2) -H: Print each column Title users command: &n...
2. Linux User Management (3) Detailed explanation on how to view user login time and command history
Introduction: 1. View the currently logged in user information who command: Who default output includes user name, terminal type, login Date and remote host. who /var/log/wtmp You can view every login since the wtmp file was created (1) -b: View the latest startup time of the system (2) -H: Print the title of each column users command: Print the currently logged in user , each displayed username corresponds to a login session. 2. View the command history. Each user has
3. Create an XML file with an associated XML schema&& Create an XML schema from an XML file
Introduction: First you need to create a new Windows application in Visual Basic or Visual C#. Create a new project and name it "XMLCustomerList", point to New from the File menu, and then click Project to display the New Project dialog box.
4. C# Open the file under the specified path
##Introduction: true to use the shell when starting the process; otherwise, create the process directly from the executable file. Defaults to true. Setting the property to false redirects input, output, and error streams. Otherwise it won't work.
5.
How to get the file creation date, modification date, and access time in PHP
##Introduction: This article mainly introduces the method of obtaining the file creation date, modification date, and access time in PHP. Sometimes we need to obtain the page generation time to prevent repeated generation. Friends in need can refer to
6.
php method to get file creation time and modification timeIntroduction: filemtime( string filename ) Returns the time when the file was last modified, and returns FALSE when an error occurs. The time is returned as a Unix timestamp, which can be used with date(). For example: $a=filemtime("log.txt");
Introduction: php creates a file named test.html, use filectime to get the creation time t1 php deletes the file named test.html, php recreates the file named For the test.html file, use filectime to get the creation time t2. Why t1 = t2? ? Just create...
Introduction: php creates a file named test.html, use filectime to get the creation time t1 php deletes the file named test.html, php recreates the file named For the test.html file, use filectime to get the creation time t2. Why t1 = t2? ? It is to create...
9. laravel (2) migration leverage ratio gearing ratio pe rati
Introduction: laravel, ratio: laravel (2) migration: migration in laravel is similar to a kind of data version control. 1. Create database (1) Create the database php artisan migrate based on the database php file (2) If you find a creation error, you can undo php artisan migrate:rollback (3) Create a php file in lar for creating the database php artisan make:migration create_articles_table -- c
10. phpmyadmin A relatively simple way to configure php to import the sql file generated by phpmyadmin
Introduction: phpmyadmin Configuration: phpmyadmin Configure PHP in a relatively simple way to import the sql file generated by phpmyadmin: We know that many forums or personal blog programs downloaded from the Internet have installation pages. To make such an installation program, you need to use sql files to create a database. . It is only valid for sql files exported by phpmyadmin. The copy code is as follows: $dbfile="test.sql"; $c //Get the created data//Remove the comments $c/--.*n/iU","",$ content); //Replace the prefix $c $carr=array(); $iarr=a
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