|xfs_mkfile(8)||System Manager's Manual||xfs_mkfile(8)|
- Verbose. Report the names and sizes of created files.
- No bytes. Create a holey file - that is, do not write out any data, just seek to end of file and write a block.
- Preallocate. The file is preallocated, then overwritten with zeroes, then truncated to the desired size.
- Prints the version number and exits.