log parser 2 2 commands

the running Code host$Script1={For($i=0;$i -le 100;$i++){Add-Content -Path D:\File1.txt -Value "I want add some word in this file"}}$Script2={$NW=New-Object System.IO.StreamWriter "d:\file1.txt"; For($i=0;$i -lt 100;$i++){$NW.WriteLine("I Write it again !")};$nw.Close()}PS C:\Windows\system32> Measure-Command -Expression $Script1 | select TotalMillisecondsTotalMilliseconds----------------- 117.5692PS C:\Windows\system32> Measure-Command -Expression $Script2 | select TotalMillisecondsTot

Linux Basic command format:-rw- r-- r--- file Type (-: File D: Directory L: Soft link file) (Block device file, character device file, socket file and pipe file)rw- : U owner. r-- : G belongs to group r--: o other person. R: Read x: Write x: Executels [options] [file or directory]Options:-a displays all files, including hidden files-L Show more information-D View Directory properties-H humanized Display file size-I display InodeLinux BASIC Commands

call the gzip program to process the packaged file, equivalent to TAR-CVF Shell.tar shell/Gzip Shell.tar(6) Tar-xzf shell.tar.gz call gunzip decompression shell.tar.gz, and then untie Shell.tar, equivalentGunzip shell.tar.gzTAR-XF Shell.tarThe-j parameter is used to invoke the BIZP2 program, and the usage of this parameter is exactly the same as- z (7) TAR-XJF shell.tar.bz2 untie shell.tar.bz2Four User and User group management Add user (1) Useradd NOxPasswd NOx add nox user and

hdpdata92m hivedata66m journaldata344m logs303m Spark-1.6.2-bin-hadoop2.627M sqoop260m zkdata[root@hadoop01 ~]# Du-sh *|grep [G] [filter out directories and files of GB-size]3. 2G Apps2. 2G Soft[root@hadoop01 ~]# Du-sh *|grep [MG] [filter out directories and files of size MB and GB]3. 2G apps82m flume150m hdpdata92m hivedata66m journaldata344m logs2. 2G soft303m Spark-1.6.2-bin-hadoop2.627M sqoop260m zkdata[root@hadoop01 ~]# du-sh *|grep [MG]|SORT-NR [filter out directories and files of size MB

exists, it is directly covered outcommand: mv-f log3.txt log2.txtdescription : log3.txt content directly covered the log2.txt content,-f This is a dangerous option, use must keep a clear mind, generally it is best not to add it.Output:6. Moving the Directorycommand : mv Dir1 Dir2Description: If the directory Dir2 does not exist, rename the directory Dir1 to Dir2; otherwise, move Dir1 to Dir2.Output:7. Move all files under the current folder to the top level directorycommand: MV *.. /Output:8. M

changed by means of a digital grant when granting permissions. You can also change permissions by using text-giving methods.1 Digital settingsMode refer to the above three numbers name file name# chmod Mode NameYou can view the permissions of a file by command #ls-l2 text SettingsCommand format: # chmod [who] [+ | –| =] [mode] filename?Use text to set permissions need to understand U (file owner) g (file user group) O (Other user) a (all users)Need to understand X (Execute permission), W (Write

-iV7TNOgcAAAtjc5noXY497.png-wh_500x0-wm_ 3-wmp_4-s_3281230216.png "title=" 4.png "alt=" Wkiol1l-iv7tnogcaaatjc5noxy497.png-wh_50 "/>Command description: Rename command: Rename new name target650) this.width=650; "Src=" https://s2.51cto.com/wyfs02/M02/9D/52/wKioL1l-ijiwmAkVAAA6h6QW0so108.png-wh_500x0-wm_ 3-wmp_4-s_3361480324.png "title=" 1.png "alt=" Wkiol1l-ijiwmakvaaa6h6qw0so108.png-wh_50 "/>Command Description: Create File command: Touch 3.txt650) this.width=650; "Src=" https://s3.51cto.com/wy

5, restore on the target side, and upgrade the database DB2 migrade DB sundb After the database has migrated, a large number of I/O waits have been analyzed and the buffer pool setting of the DB2 database is too small. Here's a case for querying and changing the buffer pool: DB2 connect to SUNDB DB2 "select Bpname,npages from Sysibm.sysbufferpools" DB 2 "Alter Bufferpool IBMDEFAULTBP immediate size 10000" can participate: http://liqian-84.b

1. df command to view partition usage common options-h,-m2, du command to view file directory size common options: -h [humanity] du-hhomexiaofang-s [statistics] du-shetc3, detection of repair file system fsck [file1_e 1, df command to view partition usage Common options-h,-m 2. run the du command to view the file/directory size. Common options: -H [humanity] Du-h/home/xiaofang -S [statistics] Du-sh/etc 3. check and repair the file system fsck [fil

1. View docker information (version, info) # view Docker version $docker version # Displays information about the Docker system $docker Info 2. Operation on image (search, pull, images, RMI, history) # Retrieve image $docker search image_name # Download image $docker pull image_name # List of image lists;-A,--all=false Show all I Mages --no-trunc=false Don ' t truncate output; -Q,--quiet=false only show numeric IDs $docker Images # Delete one o

Super User-related: Hide and expand the copy code Use Admin # Adding or modifying user passwords DB. adduser ('admin', 'pwd ') # Viewing the user list DB. system. Users. Find () # User Authentication DB. Auth ('admin', 'pwd ') # Deleting a user DB. removeuser ('mongodb ') # View all users Show users # View all databases Show DBS # View all collections Show collections # View the status of each collection DB. printcollectionstats () # View master-slave replic

lists all the rules in the table-Z: Clears the counter of the rule#iptables[-ttable]{-a|-d}chainrule-specification-a:append, attach a rule rule-specification: Match conditions -j processing mechanism matching criteria: (Universal matching) -s Match Source address, can IP, also can network address: can use! The operator takes the inverse,! 172.168.0.0/16 equivalent to NBSP;--SRC, or --source-d Match Destination address, can IP, also can network address: can use! The operator takes the invers

Note:commands in Redis are case insensitiveSet command Set bar 1 #设置一个key the key for bar Get command Get Bar #获取bar键的键值 Keys Keys * #获取所有的键 Exists exists [key] #判定是否存在key, if present returns 1, after returning 0 Del Del key [key ...] #可以删除一个或多个键, the return value is the number of keys deleted Type Gets the type of the key valueThe returned type can be: String;hash;list;set;zset incr 1) When an integer t

1. Common commands 1) create a project MVN archetype: generate-dgroupid = com. mycompany. app-dartifactid = My-app-darchetypeartifactid = Maven-Archetype-Quickstart-dinteractivemode = false MVN archetype: Generate fixed format -Dgroupid: Organization ID (package name) -Dartifactid project name -DarchetypeartifactidSpecify Archetypeid, Maven-Archetype-Quickstart, creates a Java project; Maven-Archetype-webapp, creates a WEB Project

Password:", enter the password to sign in. The code is as follows Copy Code Welcome to the MySQL Monitor. Commands End With; or G.Your MySQL Connection ID is 2Server version:5.6.13 Source DistributionCopyright (c), 2013, Oracle and/or its affiliates. All rights reserved.Oracle is a registered trademark the Oracle Corporation and/or itsAffiliates. Names may trademarks of their respectiveOwners.Type ' help, ' or ' h ' for h

To see which databases are available:Show DBSSwitch to that library:Use library name Use LocalUse also has a function of "Create a Database" Use testTo delete a database:Db.dropdatabase ();To view a collection:Show collectionsTo create a collection:Db.createcollection ("user");Implicitly created, inserted directly into the collection, she will automatically create the collectionDb. user. Insert ({ID:1, Name: "Lisi"});To delete a collection:Db. user. Drop ();Insert:Db. user. Insert ({ID:1, Name:

error message if the file permission cannot be changed.-V: displays details of permission changes.-R: Change the permissions of all files and sub-directories in the current directory in the same way (that is, change one by one in the way of delivery)-- Help: displays auxiliary instructions-- Version: displays the version.Example: Set the file file1.txt to readable by all users:Chmod Ugo + R file1.txtSet file1.txt to readable:Chmod A + R file1.txtSet file1.txt and file2.txt as the owner of the a

goes up, down, left, right$ To the end of a row^ To the row HeaderG to the end of the file1G to the first line10 Gb to 10 GBL screen tail H screen headM screen CTRL + F Front flipCTRL + B flip : Set number + press enter to display the row number X delete a character DW deletes the current word3 DWS delete three words Dd deletes a row: Lines 5 and 10 are deleted from 5 to 10. R to replace one characterCC replaces one line C. Replace the cursor with the end of the row.Copy a word from YWYY copy a

After oracle is installed, three users are generated by default, which are: SysUser: Super Administrator with the highest permissions. Its role isDBAThe password is:Change_on_install SystemUser: it is a system administrator and has high permissions. Its role isDbaoperThe password isManager ScottUser: common user, password isTiger 1. Create a user Create a new user in OracleCreate userCommand, and you must have the DBA (Database Administrator) permission to use. Example: Create u

I. Create a CORDOVA projectTwo. List which platforms the project supportsThree. Project add one or more platform supportFour. Remove a platform support for the projectFive. Update the Cordova version of a platform for this projectSix. List which plugins are included in the projectSeven. Add one or more plugins to the projectEight. Remove a plugin from the projectNine. Search for plugins by keyword10. Compiling the app package for the specified platformEleven. Launch simulator run appTwelve. Star