Could you tell me the shell cp/home/${a}? 1/home/test the command "? 1 "what meaning be? Predecessors, please guide, thank you very much

CodePudding user response:

To 1 at the end of the file such as:
A1 b1 c1

CodePudding user response:

Assuming a=first file

Such as/home/there are three files are respectively under the file file1 and filea1

In the above command will only copy filea1 because this file? Said there must be a character, that is, the file and one must have a character in the middle