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cstream by Martin Cracauer - version 3.0.0 -V = print version number to stdout and exit with 0 -v <n> = verbose [default: off] 0 = nothing 1 = report bytes transferred and throughput 2 = also throughput after first read/write 3 = also seperate throughput for read and write (unimplemented) 3 = verbose stats on every read/write -b <n> = blocksize [default: 8192] -B <n> = buffer (at most) <n> bytes [default: one block] -c <n> = Concurrency, writing done by a seperate process 0 = no concurrency, one one process 1 = read side buffers 2 = write side buffers 3 = both sides buffer, -B amount of data will be transferred at once -n <n> = overall size of data [default: unlimited] -t <n> = throughput in bytes/sec [default: unlimited] if positive, bandwith is average over whole session. if negative, every write is delayed to not excceed. -i <s> = name of input file, - = generate stream yourself to use stdin, use -i '' -o <s> = name of output file, - = just sink data to use stdout, -o '' -I <s> = Type of input file -O <s> = Type of ouput file 'f' = fifo (create it) 'a' = set audio modes on file (i.e. CD quality) 'N' = don't use TCP even if filename has ':' 't' = tee - in addition to outfile, copy stream to fd 3 'D' = O_DIRECT 'S' = O_SYNC [Multiple chars allowed] -p <s> = Write pid as ascii integer to file <s> -l include line count in statistics -w <n> = Set write block size (-c 5 only) -S Don't output statistic on SIGINFO -T <n> = Report throughput every <n> seconds SIGINFO causes statistics to be written to stderr SIGUSR1 causes statistics to be written to stderr SIGUSR2 causes loop end after next buffer transfer <file> if -i has not been used, specifies input file -6 <n> Use IPV6: -1 = don't, 1 = allow both, 2 = force v6 On some platforms server mode 1 forces ipv6, as they don't open both v4 and v6 ports from one bind call.
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