10.10 Reject File Names ======================= The names for reject files (files containing patches that 'patch' could not find a place to apply) are normally the name of the output file with '.rej' appended (or '#' if using '.rej' would make the backup file name too long). Alternatively, you can tell 'patch' to place all of the rejected patches in a single file. The '-r REJECT-FILE' or '--reject-file=REJECT-FILE' option uses REJECT-FILE as the reject file name.