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change one line in a large fine

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From:
linuxguy
Date:
November 20, 2022 08:58
Subject:
change one line in a large fine
Message ID:
trinity-d377137f-f8a8-4a8b-91f8-27e32b8e1853-1668934709073@3c-app-gmx-bs51
Hello perl world,

I have a large file which has millions of lines.

They are text only lines.

If I have to change one line in the file, what's the efficient way?

I don't want to slurp the whole file into memory, change that line and write the full content back to disk again.

Thanks.
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