preserve the ownership
 

After the user zip the file , then the owner of the zip file will be changed , how to preserve the owership ? thx

host//tmp> ll abc.prn
-rwxrwxrwx userA abc.prn
host//tmp> whoami
host//tmp> userB
host//tmp> gzip abc.prn
gzip: abc.prn: Operation not permitted
host//tmp> ll abc.prn*
host//tmp> -rwxrwxrwx userA abc.prn
-rwxrwxrwx userB abc.prn.gz
How to let the owner of the file "abc.prn.gz" is userA (except change it by root) ? thx

change it with

I can do it at UNIX , but fail in Linux , the error is "chown: changing ownership of `./abc.prn': Operation not permitted" , all users is the same result, can suggest how to make it? thx.

Does userB have permission to write to the directory where the file is?

Yes , the path is released to all users, the mode is 666 .

you need to be root