zenbook 501

Etc directory there are two files under one passwd a grouppasswd GID is the primary group, the other groups are extension groups, and the extension groups are described in/etc/group.Useradd username if not specified, a GID with the same UID is created by default.Other groups can be added to other groups by-G when creating users, or they can be modified with usermod-g groupname username for existing users.For example, the primary group for User1 is 500, and the expansion group is

,asmadmin,asmdba,asmoper,oper), taking actions on one of the test-5 as an example:[Email protected] ~]# GROUPADD-G 501 Oinstall[[email protected] ~]# GROUPADD-G 502 DBA[Email protected] ~]# Groupadd-g 504 Asmadmin[Email protected] ~]# GROUPADD-G 506 ASMDBA[Email protected] ~]# groupadd-g 507 Asmoper[Email protected] ~]# useradd-u 5001-g oinstall-g dba,asmadmin,asmdba,asmoper-d/home/grid-s/bin/bash-c "Grid" GRI D[Email protected] ~]# Su-grid[[email pro

). EXEC dbo. Usp_Recompile_TEST 130; EXEC dbo. Usp_Recompile_TEST 500; EXEC dbo. Usp_Recompile_TEST 506; EXEC dbo. Usp_Recompile_TEST 507; So execute the preceding SQL statement 130. we are sure that the temporary table # T will not be used to update the statistical information. will 501 trigger the update of the statistical information of the # T table? If it is not triggered, what is the exact value? The answer is 507, as shown below:

In centralized management, user management is important. The following is my summary of Salt's document on user management. 1. Add a single user: Generate Password OpenSSL passwd-1-salt 'linwangyi' 650) This. width = 650; "src =" http://s3.51cto.com/wyfs02/M01/4B/BB/wKioL1QxLFmTKBXAAACFheOk6uo687.jpg "Title =" 1.jpg" alt = "wkiol1qxlfmtkbxaaacfheok6uo687.jpg"/> User. Users File [[Email protected] salt] # Cat user/useradd. SLS Linwangyi: User. Present: -Fullname: linwangyi d -Shell:/bin/bash -P

@ xiaomazi ~] $ Cp/etc/fstab/tmp/--> note the identity of the file to which the file belongs.[Hadoop @ xiaomazi ~] $ Ls-l/tmp/Total 28-Rw-r -- 1 hadoop 921 Feb 26 fstab[Hadoop @ xiaomazi ~] $[Root @ xiaomazi ~] # Find/tmp-user hadoop/Tmp/fstab[Root @ xiaomazi ~] # 2). The file owner group is the file of the hadoop User:[Root @ xiaomazi ~] # Find/tmp-group hadoop/Tmp/fstab[Root @ xiaomazi ~] # 4. Search by UID/GID:-Uid-Gid GIDIf I delete a Fedora user without option-r, the user file will not be

The main idea is: The following describes how to sort the topology of an AOV network: 1: select a vertex with an inbound degree of 0 (no direct precursor) from the AOV network and Output 2: delete the vertex from the AOV network and all edges from the vertex. 3: Repeat steps 1 and 2 until the vertex with an input degree of 0 is not found. There are two kinds of Topology Sorting results according to the above method: one is that all vertices are output, that is, the entire Topology Sorting is co

/passwd We use cat to view this fileRoot:x:0:0:root:/root:/bin/bashBin:x:1:1:bin:/bin:/sbin/nologinLp:x:4:7:lp:/var/spool/lpd:/sbin/nologinSync:x:5:0:sync:/sbin:/bin/syncDingn:x:501:501::/home/dingn:/bin/bashWe first look at the first line of root, a total of seven items, each using: separate, they represent the following:account Name: Account name due to the corresponding user ID, this is the system defaul

Hash algorithm) secure hashing algorithm 160-bit fixed-length outputThird,/etc/groupFirst field group name second field password placeholder third field GID fourth field with this group as an additional group user list, multiple users separated by commascat/etc/grouproot:x:0:bin:x:1:bin,daemon...hao:x:500:guang:x:501:Iv. User Management1, Useradd (adduser) Add usersWhich Useradd/usr/sbin/useradd~]# ls-l $ (which useradd)-rwxr-x---. 1 root root 103096

@yans1 ~]$ ID Oracleuid=500 (Oracle) gid=502 (oinstall) groups=502 (Oinstall), 501 (DBA)[Oracle@yans1 ~]$ More/proc/sys/vm/hugetlb_shm_group0 Below, use root to add the DBA group to the system kernel by executing the following command: # echo 501 >/proc/sys/vm/hugetlb_shm_group Then start the database and the problem disappears.So what's the Hugetlb_shm_group group? Here is an explanation:Hugetlb_shm_gro

The password file, or password file, is used to authenticate users who manage through the network. 1. Local connection By default, whether the instance is started or not, the database server local user logon to the database is validated by the operating system, that is, whether the operating system user that initiated the login belongs to the Oinstall group, and is acceptable Log on, otherwise prohibited, and the database users and passwords used at logon regardless of the wrong database user

Based on the python2.7 version, crawl Baidu mobile phone Assistant (http://shouji.baidu.com/software/) Web site app data. Process flow Chart of crawler The crawler process flowchart is as follows: Created with Raphaël 2.1.0 Start analysis address structure Get app category page URL crawl app detail page URL crawl App Detail page data save crawl data to JSON file end Two, concrete steps 1. Parsing URL address structure

of the file (n default = 10)Head-n 1/etc/initab View Previous lineHead-n 2/etc/initab View first two linesTail viewing the following n rows of a fileTail-n 5/etc/initab User group permissions6.1 UsersUser: A unique user ID (UID) is created for each person createdUID 0 is RootUID RH7 allocation starting from 1000 RH6 starting from 500PID Process Number#useradd-U 1003 zhangsan The UID of the specified userThe system only recognizes numbers, and people are identified by file names or syst

is installed, the database startup error: ORA-27125.The description of ORA-27125 errors in the Oracle document is: ORA-27125: unable to create shared memory segmentCause: shmget () call failedAction: contact Oracle support After a query, the problem found to be related to hugetbl on linux.The solution is also simple. First, check the oracle user group information: [Oracle @ yans1 ~] $ Id oracleUid = 500 (oracle) gid = 502 (oinstall) grou = 502 (oinstall), 5