to complete the corresponding task, but sudo can directly follow the command, such as Sudo Root can be executed without root password only root can execute the corresponding command, but it has to be visudo to edit the/etc/sudoers to achieve;Visudo Note: Visodo is the editor of the/etc/sudoers command, you can not use this command, directly with VI to edit the/etc/sudoers effect is the same;Sudoedit Note: Similar to the sudo function;
3, the management of user
Win10 does not provide solutions for local policy groups, local users, and groups.
Windows 10 has become popular. Many users find that the system lacks some features, such as the inability to add local users, the absence of local users and groups, and the absence of local policies. This is not a computer reason, but a win10 system version. To solve these problem
1. User lock: Passwd-l user12. Unlock User: Passwd-u user13. User no Password registration: passwd-d user14. Add to the secondary user group: Gpasswd-a user1 boss (group name)Remove user to Secondary user group: Gpasswd-d user1 boss5. Switch to the Boss user group: Newgrp boss (after User1 login), you may want to enter a user group.6. Add users to the main user group and to the secondary user group:Useradd-g group01-g GROUP02,GROUP037. Group user group plus password: gpasswd newpasswd renewpassw
Comparison of two groups of signals in Linux and two groups of signals in Linux
Blog gradually migrated to, independent blog, original address http://www.woniubi.cn/two_groups_signal_difference/
When looking at the signal, I did not pay too much attention to the comparison of different signals. when I saw it again today, I suddenly felt that some signals were very similar and even very confusing. I will tak
1. Add a user groupTo add a user group using the Groupadd command:Groupadd group_nameThis operation needs to be done by the system administrator.2. Delete a user groupTo delete a user group using the Groupdel command:Groupdel group_nameThis operation needs to be done by the system administrator.3. Define Group AdminsUse the GPASSWD command to specify the group administrator:Gpasswd-a User Group_nameThis operation needs to be done by the system administrator.4. Set the group passwordTo set the gr
We sometimes create an extra user to use for others to protect our own user security and privacy, while the new Windows default standard user can basically meet this control, but the user is not authorized to modify the IP property if the change of the working environment is required. This has affected users in a range of users, Microsoft has made a separate user group to modify IP properties, simply through the Control Panel-> management tools-> Computer Management-> Local Users and
Add users to user groups and user groups in Linux
Http://blog.csdn.net/pursue168/article/details/6443046
To add a user to a user group, do not directly use: usermod-G groupAThis will cause you to leave other user groups and act only as a member of the groupA user group. -A option should be added: usermod-a-G groupA user
(FC4: usermod-G groupA, groupB, groupC user
Users and groups of linux commands, linux Command groups
1. Files for saving user information
root:x:0:0:root:/root:/bin/bashpwftp:x:500:500::/alidata/www/wwwroot/:/sbin/nologinapache:x:48:48:Apache:/var/www:/sbin/nologinmysql:x:501:400::/home/mysql:/sbin/nologin
A total of 7 items are separated:
1
User Name
2
Password
The real password is saved in/etc/shadow.
Create multiple user groups and users, set up candidate groups, default shellgroupadd-g 40000 adminuser specify GIDUseradd natasha-g adminuser Specify a subordinate group[Email protected]/]# Useradd Harry-gadminuser[Email protected]/]# Useradd sarah-s/bin/nologin[Email protected]/]# echo "Glegunge" | passwd--stdin Natasha Specify passwordChanging password for user Natasha.Passwd:all Authentication tokens up
#define NSLOG (FORMAT, ...) fprintf (stderr, "%s\n", [[NSString Stringwithformat:format, # #__VA_ARGS__] utf8string]);#import int main (int argc, const char * argv[]) {@autoreleasepool {Variable groups inherit immutable groups1, create. Set the number of elements to createNsmutablearray *arr=[nsmutablearray Arraywithcapacity:7];2. Add an element to the arrayNsarray *[email protected][@ "Mon", @ "Tue", @ "Wed", @ "Thu", @ "Fri", @ "sat", @ "Sun"];//imm
Oracle groups fetch the first data in each group, and oracle groups
select*fromtest;
No
Time
Name
1001
20141226
Zhangsan
1001
20141227
Lisi
1002
20141228
Wangwu
1002
20141229
Zhaoliu
select*from(selectrank()over(partitionbydocumentnoorderbytimedesc)r,a.*fromtest a)wherer=1;no time name----- ----------- ----------1
Combination of Linq groups and linq groups
There is a List, which requires grouping by date and combining the data of the same day with the implementation of Linq.
namespace ConsoleApplication1{ class Program { static void Main(string[] args) { List
We can see that the data items are grouped by date, and the data items of other attributes are merged and displayed.
Typically, as a deployment script for an application, the first task that begins is to create a dedicated (dedicated) user and user group for the current app. This script is very simple, a reference sample is attached here:#!/bin/shuser=test_usergroup=test_group#create group if not existsegrep "^ $group"/etc/group >/dev/nullif [$?- NE 0]then groupadd $groupfi #create user if not existsegrep "^ $user"/etc/passwd >/dev/nullif [$?-ne 0]the n useradd-g $group $userfiFor adding users, we can al
The thread must be specified in the RACTo add a log group RAC:ALTER DATABASE Add logfile thread 1 Group 1 (' +data/irac/redo01_1.log ', ' +data/irac/redo01_2.log ') size 1024m;ALTER DATABASE Add logfile Thread 1 Group 2 (' +data/irac/redo02_1.log ', ' +data/irac/redo02_2.log ') size 1024m;Single instance:ALTER DATABASE Add logfile Group 1 (' +data/irac/redo01_1.log ', ' +data/irac/redo01_2.log ') size 1024m;To add a log file, you do not need to make size sizes:ALTER DATABASE add logfile member '
------------------------------------------
Db_name string ORCL
SQL> show parameter control
NAME TYPE VALUE
-----------------------------------------------------------------------------
Control_file_record_keep_time integer 7
Control_files string + DATA/orcl/controlfile/current
. 260.833734379
Control_management_pack_access string DIAGNOSTIC + TUNING
There are two ways to generate a new control file in a new disk group (recommended method 2 ):
Method 1: generate a backup of an existing control f
Linux users and user groups, linux User GroupsUsers and user groups1./etc/groupGroup Name: x: group number: User ListGroup No. 1-499 Reserved System No.Group No. 500-User Creation2./etc/gshadowGroup Name: group password: Group Administrator: User List3./etc/passwdUsername: Password placeholder: user No.: User Group No.: Comment: main directory: shell Type4./etc/shadowUsername: Password :::::5. GroupGroupadd group name-G group ID # specify group IDGrou
Groups viewing the members of the currently logged on user groupGroups Gliethttp View the group that the Gliethttp user is in, and the members in the groupWHOAMI View the currently logged in user name/etc/group file contains all groupsAll user names exist for/etc/shadow and/etc/passwd systems1,/etc/group commentary;The/etc/group file is a user group profile that includes users and user groups, and can show
Groups viewing the members of the currently logged on user groupGroups Gliethttp View the group that the Gliethttp user is in, and the members in the groupWHOAMI View the currently logged in user name/etc/group file contains all groupsAll user names exist for/etc/shadow and/etc/passwd systems1,/etc/group commentary;The/etc/group file is a user group profile that includes users and user groups, and can show
Linux Add/Remove users and user groups http://www.cnblogs.com/xd502djj/archive/2011/11/23/2260094.html1, Build Users:AddUser PHPQ//New PHPQ Userpasswd PHPQ//Set password for PHPQ user2. Build Working GroupGroupadd test//New test Workgroup3, new users at the same time increase the Working groupUSERADD-G test PHPQ//new PHPQ user and added to test workgroupNote::-G belongs to the group-D home Directory-S used by the shell4. Increase the Working Group for
Linux system can support multiple users to use different terminal equipment login system, users are divided into different groups according to different attributes, in order to system security needs to set different permissions for different users, so it involves the management of users and groups.Management of users and groupsUser accountGroup accountsAssignment of permissionsAAA Certified system developed by CiscoAuthentication: Certification, verif
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