What are the file maintenance commands?

File maintenance commands are to create copy, remove & change permission on files. You can use the following commands—
Commands/syntax                               working of it.
chgrp [options] group file                 change the group of file
chmod [options] file                     change the access mode of file
chown [options] owner file           change the ownership of file(only super user can do it)
cp [options] file1 file2                 copy the content of file1 into file 2
mv [options] file1 file2                        move file1 into file2
rm [options] file                               remove file or directory