Note that there is a significant difference in that `tee` also outputs the file. For something like this a single line with a single character is unlikely to bo

Note that there is a significant difference in that `tee` also outputs the file. For something like this a single line with a single character is unlikely to bother anyone, but if you are trying to write an image to a disk it will be rather unpleasant. I tend to use the following: echo 1 | sudo zsh -c '>/proc/sys/kernel/perf_event_paranoid' or even <<<1 sudo zsh -c '>/proc/sys/kernel/perf_event_paranoid'