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The downside of output redirection is that you need permissions. So something like
won't play nicely w/ sudo. You'd need to do something like
bash -c '> file'
instead, you could go w/
sudo truncate -s0 file
Immediately make a file empty. This even works if the file is still being written to. Great for cleaning up huge log files!
Using only this, has the same.
(tested in linux, HP-UX and AIX)
If you can do better, submit your command here.
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