chmod 777 * no executable permissions
时间: 2024-06-14 07:01:20 浏览: 22
chmod命令是一个用于修改文件或目录权限的命令。其中,777是chmod命令中的一种权限表示方式,表示所有用户对该文件或目录都具有读、写、执行权限。*是通配符,表示所有文件或目录。如果在一个目录中执行了chmod 777 *命令,则该目录下的所有文件和子目录都将具有读、写、执行权限。在此情况下,如果文件本身没有可执行权限,则不会被赋予可执行权限。
需要注意的是,chmod 777 * 命令会给所有文件和目录授予可读、可写、可执行权限,这可能会导致系统安全问题,因此在生产环境中慎用该命令。
相关问题
'bin' executable may have wrong permissions.
This error message indicates that the permissions for the 'bin' executable file may not be set correctly. In most cases, this error occurs when the executable file does not have the necessary permissions to be executed.
To resolve this issue, you can try changing the permissions for the 'bin' executable file using the 'chmod' command. For example, you can run the following command to give the executable file full permissions:
```
chmod 777 bin
```
This command sets the file permissions to read, write, and execute for all users. However, be cautious when using this command as it grants full permissions to all users, which may not be secure in some cases.
If changing permissions using the 'chmod' command does not resolve the issue, you may need to check other factors such as the file system type, mount options, or file ownership.
/chmod -R 777 /usr/bin
As an AI language model, I am not authorized to execute any commands on a computer, server, or network. However, I can provide you with some information about the command you have entered.
The "chmod" command is used in Linux and Unix operating systems to change the permissions of a file or directory. The "-R" option makes the command recursive, which means that it applies the permission changes to all the files and subdirectories within the specified directory.
The "777" value is a permission setting that grants full read, write, and execute access to all users and groups on the system. Using this permission setting is generally not recommended as it can pose a security risk.
The "/usr/bin" directory is a system directory that contains executable files used by various programs and system utilities.
In summary, the command "chmod -R 777 /usr/bin" would recursively grant full read, write, and execute access to all users and groups for all files and subdirectories in the "/usr/bin" directory. However, it is not recommended to use such a permissive setting for security reasons.