Consolidation of directories under Linux and overwriting of files

There are two directories and files in the test and new,test directories, the new directory has changed some of the directories and files under test, as well as some new files, now merge the two directories and overwrite the old files under test.

Cp-frap new/* test/

The command is actually very simple, explained below:

-F Force overwrite, do not ask yes/no (-I default, that is, the default is interactive mode, ask whether to overwrite)
-R recursive replication, including directories
-A To do a backup, here can not use this parameter, we can first back up the entire test directory
-P Keep the properties of the new file unchanged

One thing to remember is that implementing merging and overwriting is using the CP, not the MV. when we paste a folder under Win7, we can also implement merge and overwrite functions, and the system will prompt whether to overwrite or save two files with the same name.