I'm trying to create a unique identifier and unix time seems like a good option but didn't see how to create a unix date stamp in the documentation (
Dates and Times [Keyboard Maestro Wiki]). Is this possible?
I did see something close but don't recognize the "A" in the format string -- what is "A" outputting?
Unix time will provide a unique ID, but it does not reveal any other info.
That's why this was offered in the Wiki:
||Token and Format
|Use in File Name
As mentioned in the wiki article, you can see all of the iCU D/T codes here:
For the complete list of codes, see the ICU Date/Time codes.
How unique to do you need it to be?
Will it only be created/used on a single machine by a single user/macro?
Is it possible that more than one instance of the macro/script you use to generate it could be running simultaneously, perhaps even within the same millisecond (the '%A' time format string provides milliseconds)?
If it just needs to be "good enough" then this may not be a problem. But if you need this to scale in any way, try Googling for "generate a strong unique id"...
Thank you all. Setting variable to calc is perfect and I've also bookmarked those ICU Date/Time codes for reference.
Steve, you raise a good point about uniqueness. For now, milliseconds should be sufficient but if my process scales and is run programmatically, I'll explore a more robust unique identifier.