liberty basic commands

all properties are maintained, equivalent to the-RLPTGOD,-A option followed by a–no-option This means that one of the-rlptgod is closed, for example-a–no-l is equivalent to-rptgod-R subdirectories are processed recursively, primarily for directories, if a single file is not required to add-r, but the transmittedYes directory must be plus-r option-V Print some information, such as rate, number of files, etc.-L reserved Soft link-L treats the soft link as a regular file, and if there is a soft co

--SYSTOHC set the hardware clock to the current system time if one of the times is wrong, we can modify it by the above command. [[email protected] hzh]# Hwclock--hctosys Set the system time corresponding to the hardware time.[[email protected] hzh]# Hwclock--SYSTOHC set the hardware time corresponding to the system time. If two times is wrong, we can set the time ourselves [[email protected] hzh]# hwclock--set--data= "month/day/year: minutes: Seconds"Yum related operations:Yum install Yum check

another file or directory [Email protected] app]# cp/etc/passwd/app/[[email protected] app]# lspasswd[[email protected] app]# cp-r/etc/sysconfig/network-scripts//app///-r recursively copy directory and all internal content[[email protected] app]# lsNetwork-scripts passwd RM//delete files and directories [[email protected] app]# RM-RF *//r Force delete F Delete Directory MV//change file or directory commands or m

The vast majority of databases run on Linux and UNIX platforms, and as the X86 platform's computing power nears or exceeds minicomputer, and in the tide of the IoE, more and more database environments run on Linux platforms.The Linux system is large and complex, summarized as a DBA, some basic management, network management, advanced applications, performance diagnostics, pipeline complex applications, hardware-related sensing

your application requires an embedded database, you can download this version. Of course, you can download the source code and compile it yourself. After the download is complete, extract the file sqlite3.exe, which can be placed in any PATH, and then add the PATH to the PATH environment variable, in this way, you can run the SQLite command line tool on the console at any time. III. Basic commands 1. Ent

Beginner Linux may appear to forget the command, this time should be a few common commands to write down, so that every day can knock, the days will be a long time in the mind has a deep impression. Here is my record of the common Linux commands, as well as the configuration of the service, are very practical, but for a bit of basic people:I. Some information abo

Tags: Redirect program linux zip tar.bz2 Delete directory delete query history commandPeople who have played Linux will know that there are really a lot of commands in Linux, but people who have played Linux have never bothered by the fact that Linux commands are so many, because we only need to master the commands we use most often. However, everyone's purpose o

. display the Datanode list $ Bin/hadoop dfsadmin-report 15. Retire Datanode node datanodename $ Bin/hadoop dfsadmin-decommission datanodename 16. The bin/hadoop dfsadmin-help command can list all currently supported commands. For example: *-Report: Reports basic HDFS statistics. Some information can be seen on the NameNode Web Service Homepage. *-Safemode: Generally, this mode is not required. The administ

Basic operating commands for the System 1. root/catanaconda-ks.cfg to determine whether to install base software group Yum groupinstall base can be used to install the base group ifconfig command or use ip addr sh to view IP information. To use YUM, you need to create xxx. repo for the yum installation system. Then install the base group 2. Command Line: use shell to explain the input string to run the p

7. Basic Redis commands-task queue and redis queue1. Advantages: loose coupling is easy to expand, and consumers can expand multiple servers.2. LPUSH RPOP3. The BRPOP command is similar to RPOP. The only difference is that when there are no elements in the list, the BRPOP command will always block the link and know that new elements are added.4. If the value of BRPOP key timeout is 0, the waiting time is no

Setup#配置网络 Mail UserName#查看发送电子邮件 Write UserName#给用户发信息, save end with Ctrl+d Wall message#发广播信息, Wall (that is, write all) ------------------------------------------------------------------------------------------------Help commands Man command or configuration fileHelp command ------------------------------------------------------------------------------------------------Bash common shortcut keys CTRL + C

MantissaParameters-F, the--format= format uses the printf-style floating-point format-S, the--separator= string separates numbers using the specified string (by default: \ n)-W,--equal-width adds 0 before the column to make the same widthExample#显示1-50 integersSEQ 50#以000方式显示9-11 interval integer seq- F "%03g" 9 11#以000方式显示1-100 interval integersSeq-f "%03g" 1 100Children's shoes often meet the question:Question 1:yudanl:~ yuchao$ cd~-bash:cd~: Command not foundQuestion 2:yudan

as passwd) Games and toys (gaming and entertainment) Miscellaneous (Miscellaneous, conventions and agreements, such as Linux file systems, network protocols, ASCII codes; environ global variables) Administrative Commands (administrator commands, such as Ifconfig) Man is searched in the order of chapter numbers in the manual.The man set the following function keys: function

Mysql setup and basic commands I. mysql setup process Install mysql on ubuntu 1. sudo apt-get install mysql-server 2. sudo apt-get install mysql-client 3. sudo apt-get install libmysqlclient-dev 2. Basic commands-Logon, logout, addition of databases, addition of tables, deletion of databases, deletion of tables, displa

$$proxy_add_x_forwarded_for; # When setting up Harbor behind other proxy, such as an Nginx instance, remove the below line if the proxy already has similar settings. proxy_set_header X-Forwarded-Proto $$scheme; proxy_buffering off; proxy_request_buffering off; } Therefore, if your docker version is too old, it will request/V1, and the error will always be reported. This article mainly explains the underlying execution process and related principles of docker login,

The three modes of VIM in Linux are: command mode , last line mode , and edit mode . here is a diagram of the three:Switch between the three modes:The command mode is the default mode in Vim.Command mode switch to last line mode : Use colon (:) in English.last-line mode switches to command mode : Press ESC or double ESC or delete all commands from the last line.Command mode switch to edit mode : Key I or a.edit mode tangent back to command mode : Pre

Basic Oracle Tutorial: SQLPLUS Environment command. Commonly Used commands of sqlplus when an SQL statement is entered, SQL is cached in SQLPLUS. This cache is small and only one SQL statement can be allowed. Basic Oracle Tutorial: SQLPLUS Environment command. Commonly Used commands of sqlplus when an SQL statement is

[-amnrsvpio][--help][--version]Supplemental Note: uname can display basic information such as the version of the operating system used by the Linux host, the name of the hardware.Parameters-A or –all verbose output all information, followed by kernel name, hostname, kernel version number, kernel version, hardware name, processor type, hardware platform type, operating system name-M or –machine displays the hardware (CPU) name of the host-N or-nodenam

The following describes the basic MySQL commands. 1. start the MySQL serverIn fact, the previous article describes how to start MySQL. Two methods: one is to use winmysqladmin. if the machine runs automatically at startup, you can directly go to the next step. Second, run c: mysqlinmysqld in DOS mode2. enter the mysql interactive operation interfaceRun: d: mysqlbinmysql in DOS modeThe prompt "mysql" appear

Linux Cainiao must also know several basic ubuntu commands 1: sudo should be one of the most common commands in linux, because you can temporarily obtain root permissions even if you are not a root user, for example, install and uninstall, modify the configuration of various services, and so on, so remember this 2: ap... linux Cainiao must also know several