android change file permissions without root

Under Linux every file has a permission attribute, then how to use Java to change the permissions of a file in Android?There are two ways to change the permissions of a

[Mysql] Change the root password and create an account with the same permissions as root, mysqlroot You may need to change the root password because it must work with the Mysql database password on the server. You cannot always u

You may need to change the root password because it must work with the Mysql database password on the server. you cannot always use Ctrl43; H to replace the server password of the network project, otherwise, it may be replaced with other database-independent fields. This makes the project even worse. You may need to change the

author : Wan Jing, the absolute dustReprint Please famous source : http://blog.csdn.net/shulianghan/article/details/36438365Sample code Download :-- CSDN : http://download.csdn.net/detail/han1202012/7639253;-- GitHub : https://github.com/han1202012/TracerouteAndBusybox;1. Principles and Ideasfile permission modification cannot be implemented : If No root privileges , you cannot change the

this:Mysql> Show grants for [email protected];Show can see a lot of thingsShow CREATE Database dbname; This allows you to see some of the parameters used to create the database.Show create table tickets; You can see some of the parameters used to create the table1, modify the table, log in to the MySQL database, switch to the MySQL database, using SQL statements to view"Select Host,user from User;"\mysql-u root-pvmwaremysql>use MySQL;\mysql>update Us

Linux has three ways to change permissions:chmod/acl/sudo The first two are used to change file permissions,sudo is used for more application or command execution permissions chmod limitation is the inability to achieve multiple rights allocation (there are o

644 to indicateModify the permissions of this file to 700chmod 700 /tmp/chen1/123.txtAnd thenls -l /tmp/chen1/You can see that the 123.txt permissions become rwx------You can also usechmod g+r,o+w /tmp/chen1/123.txtAt this point the file permissions

, we do not need to modify other people's machines for cracking. We just want to give our applications root permissions. So temporary Su is enough. We use C ++ to write an executable file. Use SOCKET to communicate with Java programs. Then, place the code that requires the root permission to be executed in the C ++ pro

computer.On the page, click the root button to start the automatic extraction of root permissions!The procedure is as follows:Step 1: store the rageagainstthecage file in the mobile phone/data/local/tmp and execute--------------------------------------------------------------------------------1) put the

/profile 60 is a change for a normal user, and 62 is a super user changeSOURCE/ETC/BASHRC # #刷新bash配置Source/etc/profile # #刷新系统配置Supplemental: The source command is also called a point command to re-execute the initial file that was just modified to take effect immediately.Source also has a function of being able to execute the contents of a file as a shell.6. Sp

Characters. My previous Service name Because the definition is long, 18 Characters, set the property notification Service View after startup Dmesg You can see the prompt: Init: no such service . View /System/CORE/init/parser. c OfSource code, In Parse_service-> valid_name The function can see the following content: If (strlen (name)> 16) {return 0 ;} , Proof Service The name cannot exceed 16 Characters. 3.

To facilitate the previous article address: After several days of calling the root permission, the problem was finally solved. Baidu, Google, and all the methods were tested.I have summarized three methods for obtaining root permissions through tests over the past few days:1 method referenced in the previous article[Html][Html]Public class DemoActivity extends Ac

=New byte[256]; - - while( -1! = (len =In.read (BS))) { -String State =NewString (BS, 0, Len); in if(State.equals ("success\n")) { - toMessage m =NewMessage (); +M.ARG1 = 1; -Downloadservice. This. Myhandler.sendmessage (m); the * } $ }Panax Notoginseng}Catch(IOException e) { - //TODO auto-generated Catch block the e.printstacktrace (); + A } the } +}The main steps are:1. Execute the

Android ADB obtains the root permission (1) In Android compiled by myself, the ADB shell automatically obtains the root permission (that is, the display # instead of $ ): Method: Modify./Default. Prop Set Ro. Secure to 0, persist. Service. ADB. Enable to 1, and the adbd process will start as the

Continue to search the Internet Android button simulation (in fact, do not know what keyword is good, can think of the keywords are used all the time, but the results of the search, are mentioned before the several dependent on the source code environment and System permissions of the scheme). Discover a lot of articles that introduce ADB debugging and send key events to your phone. Just before, under

Bootimg.cfg,The first line is the size of the original boot.img,Use Ls-l to view the size of the initrd.img and new-ramdisk.img two files,In the original boot.img size based on the size of the two file (newsize-bytes), note that the number of bytes added is best block integer times, such as 4096 bytes and so on.Then use the command to generate a new image:Abootimg--create new-boot.img-f bootimg.cfg-k zimage-r new-ramdisk.img-c "Bootsize=newsize-bytes

chmod (change mode) changing permissions What do you think about permissions? [[email protected] ~]# ls-l total usage 8-rw-r--r--.1 root root 0 June 8 14:16 2.txt-rw-------. 1 root

Packet capture process for Android mobile phones with root permissions1. connect the computer to the mobile phone and enter adb mode: adb shell2. get the root permission of the mobile phone: su3. download tcpdump; 4. put tcpdump to the mobile phone/data/local/directory: adb push c: \ tcpdump/data/local/tcpdump5. grant/data/local/tcpdump the corresponding

There are times when the root user is present in the system, but when the chmod command is used or chown modifies the file properties, it prompts for no permissions. Why is this happening? In a Linux system, if we want to keep certain files that cannot be changed or deleted, even the root user, we can use chattr to mo

The root password is not required during Ubuntu installation. After entering the Account as a normal user, you can use the following command to change the root password: Figo> sudo passwd Root Then, as root, you can access ~In addition, if you log on as a common user