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I used cut as suggested. With the input and output files located on a USB drive plugged into a ten-year-old dual-core laptop with 8GB RAM, it took under eight minutes. A look at the contents of the output file (in Emacs; still too big for e.g., Notepad++) suggested it yielded the desired result. File size was reduced from 2.9GB to 1.9GB. I will have to wait for another compelling reason to reacquaint with Emacs. Many thanks.

Ray Woodcock
– Ray Woodcock

2022-12-21 02:41:51 +00:00
Commented Dec 21, 2022 at 2:41
1

My test files were on an SSD, so that probably helped.

g-gundam
– g-gundam

2022-12-21 04:29:47 +00:00
Commented Dec 21, 2022 at 4:29

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create code fences with backticks ` or tildes ~
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like so
```
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```python
def function(foo):
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```
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