i’ve a (probably) stupid question: how to replace ...

# announcements

[nfrankel]

i’ve a (probably) stupid question:
how to replace a line in a file?
(i even never had this issue in java, so i don’t know how to do it in a simple way either)

[tddmonkey]

The simple way is to copy the file line-by-line, swapping out whatever lines you want

[tddmonkey]

Then atomically move the new file back over the original

[tddmonkey]

There are potentially more efficient ways, but they are more complex and come with caveats

[nfrankel]

ok, thanks