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tr ... | tee - - - > /dev/diskbut the likelihood thattralone doesn't already meet and exceed the write bottleneck is pretty slim.teewon't help for that.stdbuf -o1M tr...may help.tee - - -does increase throughput significantly in my testing. That's going from 800MiB/s fortr(950MiB/s with stdbuf) to 2.3GiB/s with tee, like you say in any case way above the rate any current drive can sustain.'\0' '\377'? Is it necessary? Thanks!trcommand.trtranslates characters - in this case\0to\377- both are octal numbers./dev/nullspews out constant\0andtris used to translate that stream into constant\377. 377 in octal is the same as 0xff in hexadecimal.