TBD: Test
Simple command line utility to insert some text in the beginning of the file inplace. The process requires prefix*2 buffer size.
The utility is an optimization if the command sed -i '1i/sometext' [FILE],
except that sed creates a temporary file copy. This utility does not.
USAGE : prepend PREFIXFILE FILE [FILE]*
WARNING: Process is not transactional. If interrupted in the middle, the file is left corrupted.
TODO :
- Non-file sources for the prefix support.
- Optimize for using smaller blocksize.
- Create roll-back state file.
- Insert at byte/line.
- Check for prefix exists
- Tests
- Any requests?