tfc_say(" -a: shortcut of -O xtime.");
tfc_say(" -l length: read only these first bytes of source.");
tfc_say(" -O opts: set options (comma separated list):");
+ tfc_say(" ro: open all files only for reading, even those intended for writing,");
tfc_say(" sync: request a synchronous I/O for a output,");
tfc_say(" fsync: on each write() call a corresponding fsync(fd),");
tfc_say(" trunc: open(O_WRONLY) will truncate output file to zero size.");
+ tfc_say(" append: open(O_APPEND) will append data to output file.");
tfc_say(" pad: pad incomplete (l.t. %u bytes) block with zeroes.", TFC_U(TF_BLOCK_SIZE));
tfc_say(" xtime: copy timestamps from source to destination files.");
tfc_say(" gibsize: use SI units of size: 1k = 1000. Applies only to size prefixes.");
tfc_say(" iobs=val: set IO block size value. Must not exceed %u bytes.", TFC_U(TFC_BLKSIZE));
tfc_say(" iseek=val: seek source file/device by these val bytes.");
tfc_say(" oseek=val: seek destination file/device by these val bytes.");
+ tfc_say(" ioseek=val: seek both source and destination.");
+ tfc_say(" ioseek is equal to iseek and oseek.");
tfc_say(" count=val: process only these val bytes, both input and output.");
tfc_say(" ftrunc=val: truncate output file to these val bytes before closing it.");
tfc_say(" ftrunc=tail: truncate output's tail, leaving only processed data.");
tfc_say(" Multiple -E specifiers may be given in separate options.");
tfc_say(" -o logfile: redirect all messages to logfile instead of stderr.");
tfc_say(" -O opts: set options (comma separated list):");
+ tfc_say(" ro: open all files only for reading, even those intended for writing,");
tfc_say(" sync: request a synchronous I/O for a output,");
tfc_say(" fsync: on each write() call a corresponding fsync(fd),");
tfc_say(" trunc: open(O_WRONLY) will truncate output file to zero size.");
+ tfc_say(" append: open(O_APPEND) will append data to output file.");
tfc_say(" pad: pad incomplete (l.t. %u bytes) block with zeroes.", TFC_U(TF_BLOCK_SIZE));
tfc_say(" xtime: copy timestamps from source to destination files.");
tfc_say(" gibsize: use SI units of size: 1k = 1000. Applies only to size prefixes.");
tfc_say(" ixctr=val: Increment initial counter by this val bytes.");
tfc_say(" Internally this number is translated into number of %u byte blocks.", TFC_U(TF_BLOCK_SIZE));
tfc_say(" oseek=val: seek destination file/device by these val bytes.");
+ tfc_say(" ioseek=val: seek both source and destination.");
+ tfc_say(" ioseek is equal to iseek and oseek.");
tfc_say(" count=val: process only these val bytes, both input and output.");
tfc_say(" ftrunc=val: truncate output file to these val bytes before closing it.");
tfc_say(" ftrunc=tail: truncate output's tail, leaving only processed data.");