How does the Linux system forget the password?

Just like many Linux beginners, when we set the boarding code and accidentally forgot, what do we do?Don't worry, restart the system at this timeIn the restart that default five seconds countdown enters the system by pressing any key (we can press

1, the root user switch in Linux (reproduced)

The difference between Su and Su-The default account for most Linux distributions is ordinary users, and changing system files or executing certain commands requires root, which requires the switch from the current user to the root user, the command

Linux modification Time

Symptom: Automatic restore after Linux time modificationCause: The Linux date command only modifies the time of the Linux system, and the time after restarting the server becomes the time in CMOSMethod: Use clock command to write time to CMOS after

Common Commands under Linux

One. Switch User: Su usernameTwo. Find file: Find/-name filenameThreeThe purpose of the. Cat command is to connect files or standard input and print. This command is commonly used to display the contents of a file, or to connect several files to

Network environment configuration under Linux

Under Redhat, the network configuration is as followsHow to configure a static IP fileVIM/ETC/SYSCONFIG/NETWORK-SCRIPTS/IFCFG-ETH0DEVICE=ETH0ONBOOT=YESBOOTPROTO=STATICHWADDR=64:27:37:D3:B5: f7ipaddr=192.168.0.3netmask=255.255.255.0gateway=192.168.0.1

Linux Extended permissions

Extended permissions include S,g,t For creating a file or folder by the Umask value to determine the common default permissions for normal users The default is 0002 root is 0022 The default permissions for the directory are 777-umask

Linux common commands (13)-head

head and tail are as simple as their name, which is used to display the beginning or end of a certain number of chunks of text, the head is used to display the beginning of the file to the standard output, and tail to see the end of the file . 1.

Linux common commands (11)-More

More commands, featuressimilar to Cat,Cat Commandis aThe contents of the entire file are displayed on the screen from top to bottom. Morewill be a page-by-page display to facilitate users to read pages, and the most basic instruction is to press

How do I quickly find a file on a Linux system?

Previously saw a sentence: the level of Linux is reflected in the Quick Find files ~ ~ ~, perhaps this sentence exaggeratedBut because everything on Linux is a file, anything we want to do can be done by editing the file,such as server configuration,

Linux Add Trust

1. Create ~/.ssh Directory mkdir ~/.ssh2. Generate a Public key CD ~/.ssh ssh-keygen-t RSA in the process, you can always go to the carriage.3. View the generated files LS will see two files generated for Id_rsa and id_rsa.pub4. Add the Id_rsa.pub

Find a file Search command under Linux

Under Linux, it is often necessary to find some files in a certain location. What to do? It's enough to use the Find command. Find Search-path Expressions Search-stringIf you want to search the current directory. Then the search-path can be empty or

=: = = operator in Linux makefile

In Linux makefile, you can use =,:=,?= assignment statements, but their meanings are different. The following are respectively explained:=It is the variable that actually assigns the value to it when it is used, that is to say, delay

Linux downloads files to local

Let's say your host IP is 192.168.1.202. Start, run, enter the following command: cmd/k 192.168.1.202 in open Window input://Login FTP username User (192.168.1.202: (None))://Login FTP user password password:// After successful login, the prompt is "

How Linux displays a few lines of a file

"One" starts at line No. 3000 and displays 1000 rows. The 3000~3999 line is displayedCat FileName | Tail-n +3000 | Head-n 1000"Two" displays 1000 rows to 3000 rowsCat filename| Head-n 3000 | Tail-n +1000* Note the order of the two

Linux Learning Note four: File Search command for Linux

1. File Search Command whichSyntax: which [command name]Example: $which ls lists the directory where the LS command is located[email protected] ~]$ which lsalias ls= ' ls--color=auto ' /bin/lsAnother command: Whereis [name name], you can

Application of Vs2012 in Linux development (2): scheme design

1.1Code hints featureIn the development of vs ,Visual Assist is a very good plugin, we can still use it for code analysis, but it can only support vcxproj Engineering, so we choose to vcxproj extension so that the visualassist can be used

Linux CIFS boot automatically mounts Windows shared files

Create a new shared folder on the Windows system share, System User: Test, Password: 12345,ip:172.16.4.118 Create a new directory on the Linux system/home/share Vi/etc/fstab Add the//172.16.4.118/share/home/share cifs

Install phpmyadmin in CentOS6.x

gpg

Install phpmyadmin in CentOS6.x PhpMyAdmin is a Web interface that allows you to manage your MySQL database. So how can I install phpMyAdmin in CentOS 6.0? This article introduces the installation process, hoping to help you. First, let's import the

Installing ubuntu-14.04 in mysql-5.6.21 Systems

Installing ubuntu-14.04 in mysql-5.6.21 Systems1. Preparations before installing mysql (1) download mysql-5.6.21.tar.gz (2), tar-zxvf mysql-5.6.21-tar.gz will generate a folder for the mysql-5.6.21 (3)、download compressed package

Experience of compiling Linux-2.6.32 on the ipset-6.23 Kernel

Experience of compiling Linux-2.6.32 on the ipset-6.23 KernelNew version of ipset Last week, I received a message from the Netfilter email list when I waited for a call from the children's hospital to see a doctor. I listed the new features of the

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