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2

This is exactly what the OP does not want to do.

don_crissti
– don_crissti

2017-02-16 23:20:25 +00:00
Commented Feb 16, 2017 at 23:20
1

this method needs to write 500GB data to the disk, my question is how to in-place remove the first few lines without writing so much data.

1a1a11a
– 1a1a11a

2017-02-17 00:16:42 +00:00
Commented Feb 17, 2017 at 0:16

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Correct minor typos or mistakes
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Always respect the author’s intent
Don’t use edits to reply to the author

create code fences with backticks ` or tildes ~
```
like so
```
add language identifier to highlight code
```python
def function(foo):
print(foo)
```
put returns between paragraphs
for linebreak add 2 spaces at end
_italic_ or **bold**
indent code by 4 spaces
backtick escapes `like _so_`
quote by placing > at start of line
to make links (use https whenever possible)

<https://example.com>

[example](https://example.com)

<a href="https://example.com">example</a>

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