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lang-bash
sed -idoes not actually modify the file in place - it creates a temporary file and renames it on exiting. So you won't be able to do something liketail -f ...on the original file and see the output usingsed -i ...while the pipeline is running-i creates a new file of same nameor is there something more compact? I guess I likein place, because it explains thei. The gnu-sed manpage calls it in place too and the long flag is--in-place.