draftsight commands

Common commands for MongoDB and Common commands for mongodbCommon commands for MongoDB Databases Show dbs # show database use test # select/create database db. dropDatabase () # Delete the current database db # display the current database db. test_col.insert ({x: 1}) # insert (create set) var_insert = {a: 1, B: 3} db. test_col.insert (var_insert) # insert db as

Sort notes-common Git commands, notes-common git commands In Windows, configure SSH to connect to GitHub/GitLab ==> when you need it, follow the search criteria Baidu. Echo "content"> file name ==> string output. 1. Global Configuration: Git config -- global user. name "user name" Git config -- global user. email "email address" Note: Removing -- global is not a global configuration. It will create. git/co

Common mysql commands and common mysql system commands Recently, some mysql commands were often used during my internship, so I made some preparations: Solve the character garbled problem: display Chinese characters rather than garbled characters: set names utf8; Change New password: update user set PASSWORD = password ('new password') where user = 'username '

Common vro configuration commands and simple configuration tutorials, common vro configuration commands View arp table in arp-a on the computer Arp-s IPadd MAC in computer for arp binding Arp-d in computer clears arp cache Router arp-a view arp table Vroarp arp IPadd MAC for arp binding Vroclear clear arp-cache clear arp cache Ip route network mask IPadd configure Static Routing Show running-config under t

Linux common command-permission management command chmodu/g/o +/-/r/w/x change permission user/user group/other user increase/decrease/Grant read/write/execute r4w2x1rwxr-xr -- 754752: rwxr-x-w-question: if other users have 7 permissions on the file... permission management commands for common Linux Commands Chmod u/g/o +/-/= r/w/x change permission user/user group/other user increase/decrease/Grant re

Common Git commands and git commands Since work, the source code management tool has used SVN, TFS, Git, and finally exclusive Git This blog summarizes the Git commands used in my work. The main directories are as follows:1. obtain remote code Generally, every company that uses Git as the source code management tool will have its own Git server. When we obtain th

Simple JSP exercises-JSP commands, jsp-jsp commands I. page commands: When defining the global attribute value of a JSP page, you can use the page command to place it in the header of the page. For example: Note: The contentType attribute in the page command cannot be specified twice on the same page. The page directive has many attributes. The attribute enclos

Basic Linux commands and Linux commands Compression and decompression commands Compression: tar-zcvf appName.tar.gz. date appFileName (for example, tar-zcvf rc.tar.gz. 0513 rc) Decompress: tar-xvf tarFile Tar command details: Tar package compression;-c archive file,-x compressed file,-z gzip compression,-j bzip2 compression,-v view shows

File Operation commands, operation commandsI used to Google the corresponding commands when I used them all the time. I felt that this was not systematic and I didn't have any connection with the things in the environment programming. So I decided to have time to sort out my ideas. 1. ls:File Type:D directory l link s socket file (socket) block B device file c character device file (character) p named pipel

Learn Angularjs paging commands and angularjs paging commands Many pages in the project use paging, and each page has a lot of repeated paging code. Therefore, I wrote a simple paging command to simplify the Page code and maintain it easily, use it as a backup in your blog for future reference.Follow these steps to define commands and their applications: 1. Comma

Summary of several functions similar to Linux commands and summary of Several linux commands The wc command is used to count the number of lines, characters, and bytes of text in the format of wc [parameter] text ". -L only displays the number of rows -W: only display the number of words -C: only display the number of bytes For example, count the number of users in the current system: [Root @ linuxprobe ~]

In linux, commands such as ifconfig and shutdown cannot use the _ enable Shell command Java code. Why cannot I use the ifconfig command in RedHat Linux 5? After installing RedHat Linux 5, I use some commands on the terminal, for example, ifcinfig checks the IP address of the Local Machine and finds that this command cannot be used, prompting "command not found". What should I do? If the environment variable

Common Linux commands (2): ipcs/ipcrm commands, ipcsipcrmIpcs 1. Command Format Ipcs [resource-option] [output-format]Ipcs [resource-option]-I id 2. command functions Provide information about the IPC Device 3. Usage Resource options: Ipcs-m view system shared memory information Ipcs-q: view system message queue Information Ipcs-s: view system semaphore Information Ipcs [-a] displays all IPC information in

Common Linux commands (20) and common linux commands When you use the-exec option of the find command to process matched files, the find command passes all matching files to exec for execution. However, some systems have limits on the length of commands that can be passed to exec, so that an overflow error will occur after the find command runs for several minute

Common Linux commands (8) and common linux commands Linux touch commands are not commonly used. They are generally used to modify the file timestamp or create a new file that does not exist. 1. Command Format: Touch [Option] File 2. command parameters: -A only changes the access time. -C does not create any documents. -D uses the specified date and time instead

Help for common linux commands and help for common linux commands Command name: man Purpose: help information of commands and configuration files (no absolute path is required) Mainly view the name and search parameters There are several types of help: 1. Command help. 5. configuration file help. Command name: whatis Purpose: Obtain the name informa

Common Linux commands (28th) and common linux commands The diff command is an important tool in linux. It is used to compare the content of files, especially files of different versions, to find the changes. Diff prints the changes of each line in the command line. The latest diff version also supports binary files. The output of the diff program is called a patch. Because there is a patch program in the Li

Common commands for Linux O M: du and Common commands for linux: duThe commonly used du-sh * Linux du command is also used to view the space, but unlike the df command, the Linux du command is used to view the space used by files and directory disks, there are some differences with df commands.1. Command Format:Du [Option] [file]2. command functions:Displays the

Linux basic commands (2) commands on disk space, linux disk spaceDisk Space commands Command Function Mount Mount a File System Umount Detach a mounted file system Df Check the disk space of each hard disk partition and mounted file system Du Show file directory and size Fsck It mainly checks

Gradle Common commands and principles, and gradle Common commandsGradle is a new Android App compilation tool introduced by Android Studio to replace the previous Ant-based compilation system. Gradle commands such. /gradlew-v. /gradlew clean. /gradlew build. /gradlew ,. /indicates the current directory. gradlew indicates gradle wrapper. It indicates a gradle package. You can understand that gradle is encaps