Our software has a config file. I call the one be used currently as "in using" one, and there is another backup one. When the "in using" one corrupted, we can replace the "in using" one with the backup one.

"In using" may be not a natural English, because I hardly find them being used.

Then, what's a natural expression for that?

  • 2
    Are you asking about the file in use? – Jason Bassford Aug 28 '19 at 2:36
  • @JasonBassford, yes. – Zhang Aug 28 '19 at 4:22

The correct phrase is "in use" instead of "in using".
Hence you can say,

The software currently in use

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There is one meaning of live you can use. Although the specific use here is not mentioned, similar usage is given by Lexico:


3.5 (of a ball in a game) in play, especially in contrast to being foul or out of bounds. The ball was still live and the pitcher threw it out of play.

4 (of a question or subject) of current or continuing interest and importance.
There is a question of trust and it is a live issue and we have to deal with it.

So you can say

I replaced the live version of the file with the backup.

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