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I have a huge file (8GB), I want replace on the first 30 lines the String LATIN1 with UTF-8 what is the most efficient method? Means exist there a way to use probably sed but to quit after parsed first 30 lines.
VIM was not able to save the file in 3 hours.
The problem is that in the event of a replacement, all programs will make a copy of the file with the substitution in place in order to replace the original file ultimately — they don’t want to risk losing the original for obvious reasons.
With perl, you can do this in a one-liner, but that doesn’t make it any shorter (well, it probably does compared to vim, since vim preserves history in yet another file, which perl doesn’t):