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Memcached Set store commandThe Memcached set command is used to store value (data value) in the specified key (key) .If the set key already exists, the command can update the original data corresponding to the key, that is, the role of the update.Grammar:The basic syntax format for the SET command is as follows:Set[noreply] The parameters are described as foll
Use the mkdir command to create directories and subdirectories under Linuxnow that we've listed the entries in the directory with the LS command, we're going to learn how to create a directory under a Linux system. Under Linux, we can use the mkdir command. MKDIR is the acronym for Make directory. What is mkdir?Mkdir is a co
Tags: Linux daily operation and maintenance management skillsw command: View system loadWLoad average the number of active processes that use CPU activity during the unit timeTo view the number of system CPUs (logical CPUs)Cat/proc/cpuinfo(When our process does not exceed the number of logical CPUs in our system per unit of time, it is the optimal state,When our process is larger than the CPU, be aware of what is taking up our CPU.Vmstat
Tags: string alt match Delete offset size file internal command string Command history HistoryEnvironment variables:Histsize: Number of records in the command historyHistfile:~/.bash_historyHistfilesize: The number of history records in a command history filehistory-d OFFSET: Delete a HistoryHistory + Num
The chmod command is a command used to change file or folder permissionsUse the method for chmod [who] [+ |-| =] [mode] File nameThe mode method is as follows:The numbers correspond to characters as follows:R=4,w=2,x=1To rwx the property, 4+2+1=7To rw-the attribute then 4+2=6;To r-x the property, 4+1=7.The WHO permission groups have the following relationships:u: The current user of the directory or fileG:
Tags: sort_wc_uniq shell tee_tr_split cutNote content:L 8.10 Shell special symbol cut command L 8.11 sort_wc_uniq command L 8.12 tee_tr_split command L 8.13 Shell special symbol Note Date:2017.8.168.10 Shell special symbol cut command Special symbols:1.* Any arbitrary character wildcard a wildcard650) this.width=650;
Linux Command (1): ls command, linux Command ls The ls command is the most commonly used command in linux. The ls command is short for list. By default, ls is used to print the list of the current directory. If ls specifies other
Linux Command sharing: lsof command, linux Command sharing lsof Lsof (listopenfiles) is a tool used to list open files in the current system. In linux, everything exists in the form of a file. Through a file, you can not only access common data, but also access network connections and hardware. Therefore, for example, the transmission control protocol (TCP) and
command-line editing:Cursor Jump:CTRL + A: Skip to the beginning of the commandCtrl+e: Jump to the end of the command lineCtrl+u: Delete the cursor to the beginning of the command lineCTRL+K: Delete the cursor to the end of the command lineCtrl+l: Clear ScreenCtrl+d: Delete the contents after the cursorCommand history:
PHP command line command instructions, php command line instructions. PHP command line Command Guide. php command line guide when a user opens the php page, the server executes the PHP command
Linux Command details-less command, linux Command details less In Linux, there is also a command similar to the more command-less command, which is more flexible and powerful than the more com
Linux cp/scp command + scp command details, cpscp + scp command details Name: cp Permission: All Users Usage: Cp [options] source dest Cp [options] source... directory Note: copy one file to another or copy several files to another directory. Count -A tries its best to copy the file status, permissions, and other information as they are. -R if the source contains
Tags: and special symbols file standard output Options area type syntax a lot8.10 Shell Special Character _cut command* Any of any characters？ Any one character#注释符号\ de-Justification symbol| pipe character"$" the symbol with "!" "!$" means the last variable in the previous command";" Delimiter, use "~" User's home directory when running two and more than two commands in one row (root user "/root", "/home/u
Linux Command: scp command, linux Command scp Scp is short for secure copy. It is used to remotely copy files in Linux. Similar Commands include cp, but cp only Copies files on the local machine and cannot be copied across servers, scp transmission is encrypted. It may slightly affect the speed. When your server's hard disk changes to read-only system, scp can he
Linux Command sharing: detailed explanation of the netstat command and the netstat command The netstat command is used to display statistics related to IP, TCP, UDP, and ICMP protocols. It is generally used to check the network connection of each port on the local machine. Netstat is a program that accesses networks a
Linux Command: cd command learning and use, linux Command cd Learning The Linux cd command is the most basic command statement in Linux. Other command statements are created on the cd command
1. RoleThe top command is used to display the program process in progress, and the permissions are all users.2. FormatTop [-] [D delay] [Q] [C] [s] [s] [i] [n]3. Main parametersD: Specifies the interval of the update, in seconds.Q: There are no delayed updates. If the user has a superuser, the top command will be executed with the highest precedence.C: Displays the full path and name of the process.S: Cumul
1, Connection MySQL format: mysql-h host address-u user name-P user Password1. Connect to MySQL on this machine. First open the DOS window, then enter the directory Mysql\bin, and then type the command Mysql-u root-p, enter after the prompt you to lose the password. Note that the user name can have a space or no space, but before the password must have no space, or let you re-enter the password.If you have just installed MySQL, superuser root is no pa
Command 1: alias An alias is used for convenience. If you have a frequently-used command for a long time, you can set an alias to be equivalent. For example, the default alias of LS-Alf is ll. The alias format is as follows: Alias alias = command Alias alias = "command combination" Alias allows you to view
Linux Command: rcp command, linux Command rcp Rcp stands for "remote file copy" (remote file copy ). This command is used to copy files between computers. The rcp command has two formats. The first format is used to copy files to files. The second format is used to copy file
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