| -ed | EOLs written for DOS |
| -em | EOLs written for MacOS |
| -eu | EOLs written for Unix |
| -enf spec | Encoding for all files |
| | For Example: -enfUnicodeLittle |
| -eno spec | Encoding for Original file |
| | For Example: -enoUnicodeLittle |
| -enp spec | Encoding for Patch file |
| | For Example: -enpUnicodeLittle |
| -enu spec | Encoding for Output file |
| | For Example: -enuUnicodeLittle |
| -h -help | display this Help message |
| -r- | Do not write rejects to reject file |
| -rrejectfile | Write rejects to rejectfile instead of the default .rej file |
| | For Example: -rMyPatchRejects.txt |
| -s -silent | Do not Output to stdout any information about whats being done |
| -v -verbose | Output to stderr extra information about whats being done |
| -w -white -I | ignore all White space differences |