Common linux commands: packaging, copying, and so on

Common linux commands: packaging, copying, and so on
Backup File

Tar-cf/home/app20140703bak.tar/home/app/uat/test. war

Copy the file to the target folder.
Example:
Cp-af/app/wasapp/appname_uat.ear/appname. war/*/app/wasapp/appname_rn_war.ear/appname_rn.war
Command details:
Directory where cp-ai source files are stored
++ At the same time, if a file with the same name exists during command execution, the system will prompt whether to overwrite the file. If you want to mark it, this is a good method. Of course, if you do not want this prompt, you can directly use the following command:
Folder where the cp-af source file is located

Delete an object
"Rm *. pdf" deletes all pdf files in the current pdf folder