hown changes the owner of the specified file to the specified user or group, the user can be the user name or user ID; the group can be the group name or group ID; the file is a space-separated list of files whose permissions are to be changed, and wildcards are supported. System administrators often use the chown command to give a user permission to use a file after copying it to another user's directory.
1. Command format:
chown [options]... [owner][:[group]] file...
2. Command function:
Change the owner and group of the file by chown. Username and User ID settings can be used when changing a file's owner or group. Ordinary users cannot change their own files to other owners. Its operation authority is generally administrator.
3. Command parameters:
Required parameters:
-c display information about changed sections
-f ignore error messages
-h fix symlinks
-R Process all files in the specified directory and its subdirectories
-v display detailed processing information
-deference acts on the symlink pointing to, not the linked file itself
Select parameters:
--reference=<directory or file> Use the specified directory/file as a reference, and set the operated file/directory to the same owner and group of the referenced file/directory
--from=<current user: current group> Change only if the current user and group are the same as the specified user and group
--help display help information
--version display version information
4. Example of use:
Example 1: Change owner and group
Order:
chown mail:mail log2012.log