How to get the time at millisecond level on Linux with command line?

I know that gettimeofday() is a nice API. But how to get the number of seconds with milliseconds since the epoch time?

You can get the time at nano-seconds level (although it is not guaranteed that the last digits are accurate) by:

date +%s.%N
Answered by Eric Z Ma.

Eric Z Ma

Eric is a father and systems guy. Eric is interested in building high-performance and scalable distributed systems and related technologies. The views or opinions expressed here are solely Eric's own and do not necessarily represent those of any third parties.

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