Apply the patches specified in
patchfile to original.
Replace the original with the new, patched version; move the
original~. The patch file is a
difference listing produced by the diff command. On Solaris, this command
is named gpatch.
Back up the original file.
When not backing up all original files, these options
control whether a backup should be made when a patch does
not match the original file. The default is to make backups
--posix is specified.
Read and write files as binary. Has no effect on a Unix system.
Prepend prefix to the backup filename.
Interpret patchfile as a context diff.
cd to directory before beginning patch operations.
Print the results of applying a patch, but don't change any files.
Mark all changes with:
Treat the contents of patchfile as ed commands.
If patch creates any empty files, delete them.
Force all changes, even those that look incorrect. Skip patches if the original file does not exist; force patches for files with the wrong version specified; assume patches are never reversed.
Specify the maximum number of lines that may be ignored (fuzzed over) when deciding where to install ...