On 11/12/22 21:09, Les Kitchen via luv-main wrote:
1. As you've already realised, sed's "-i", "in-place" option
just puts the output into a temporary file, which it then
renames, so you have to pass through all the data anyway.
And that's pretty much unavoidable, because the modification
will change the block-alignment of all the data in the rest
of the file (unless you did something weird, like replace the
SQL SET command with a comment of exactly the same length).
How would Perl (e.g., with -pi -e options) perform compared with Sed?
It would still have to process the entire file, of course.
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