Question: tar cvf how to use?
Answer: 1) Extract a tar.gz archive. ... 
2) Extract files to a specific directory or path. ... 
3) Extract a single file. ... 
4) Extract multiple files using wildcards. ... 
5) List and search contents of the tar archive. ... 
6) Create a tar/tar.gz archive. ... 
7) Permission before adding files. ... 
8) Add files to existing archives.