Linux Basic Command--CP

CP (option) (parameter) copy
When copying multiple source files, the target must be a directory.
The CP command uses the-I option by default, and when the target already has a file, asks the user if it is overwritten, and can use \CP to cancel the-i option

-A: Copies all the properties of the file, which are used to archive the file. , and then archive the compressed command
-D: When a symbolic connection is copied, the destination file or directory is also established as a symbolic connection and points to the original file or directory connected to the source file or directory;
-F: Forcibly copying a file or directory if there is a direct overwrite of the target file or directory

-I: If the destination file or destination directory exists, ask the user whether to overwrite

[Email protected] admin]# cp-i A/C b/cp:overwrite ' b/c '? Y this is also the default way of the CP command [[email protected] admin]# alias Cpalias cp= ' Cp-i '

-L: Make a hard connection to the source file, copy the Innode number of the source file instead of copying the file;

[[email protected] admin]# cp/a a[[email protected] admin]# cp-l/a aa[[email protected] admin]# ls-li/a a AA plus-i          Displays the inode number of the file 139923-rwxr-xr-x.  1 root root 0 Dec 01:45 A          This is a file that is copied directly over 12090-rwxrwxrwx. 2 root root 0 Dec 00:55/a       This is the source file 12090-rwxrwxrwx. 2 root root 0 Dec 00:55 aa      This is a file copied over by Cp-l.

-P: Preserves the properties of the source file or directory;

[[email protected] admin]# CP AA/[[email protected] admin]# ls-l aa/aa-rwxrwxrwx. 1 Admin admin 0 Dec 00:55 aa-rwxr-xr-x. 1 root  root  0 Dec 01:13/aa as the root user, when I copy the AA file under the Admin user's home directory to the root directory, the owner and host group of the file becomes root. [Email protected] admin]# cp-p aa/cp:overwrite '/aa '? Y[[email protected] admin]# ls-l aa/aa-rwxrwxrwx. 1 Admin admin 0 Dec 00:55 aa-rwxrwxrwx. 1 Admin admin 0 Dec 00:55/AA When you add the-p option, the files that have been copied are not changed by the owner or the original admin
This-p seems to be the original file belongs to the main group is the root of invalid???

-R/R: Recursive processing, copy all the files under the specified directory and subdirectories;

[[email protected] admin]# CP-RV b C ' B ', ' c/b ' b/c ', ' c/b/c ', ' b/c/d ', ' c/b/c/d ' b/c/d/e '

-S: Create a symbolic connection to the source file instead of copying the file;

[Email protected] admin]# cp-s/a aa[[email protected] admin]# ls-l aalrwxrwxrwx. 1 root root 2 Dec 01:32 AA/A

-B: The target file is backed up before overwriting the existing file target;

[Email protected] admin]# cp-bv/a acp:overwrite ' a '? Y '/A ' (Backup: ' a~ ') [[email protected] admin]# ls-l a*-rwxr-xr-x. 1 root root 0 Dec 01:42 a-rwxrwxrwx. 2 root root 0 Dec 00:55 a~

-V: Show Operation procedure

It's been shown all over the top.

Linux Basic Command--CP