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# getting-started
s
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f
I'm no expert, but it seems like what you want is the 
triggers
parameter? You can set it to something like 
timestamp.toString()
so that it triggers and 
update
on each run. I.E.
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const myCommand = new command.local.Command("my-command", {
    create: "echo 'Hello, Pulumi!'",
    // Use the timestamp as the working directory
    // This effectively forces the Command to run on every `pulumi up` since
    // the `triggers` argument will be different every time
    triggers: [timestamp.toString()],
});
q
Ah, thanks Alex,.. that would definitely have the effect of what I want do. That's going to effectively "recreate" that command every time? so I wonder what `update`is really that useful for?
f
That's going to effectively "recreate" that command every time?
Yes, I believe so. I suppose 
update
can be useful for things like when changing the command being run (for example, adding an environment variable?)
q
Cool; thanks for the insight. I'll play around with it.
a
I believe if you have an update script it will run instead of the create script whenever the command is triggered to run again (whether it’s from a trigger or from the script(s) being changed)
if you have a complex script that you keep changing over the lifetime of running deployments it ends up being a bit clunky (you’ll have to keep modifying both create and update in order to have both working existing deployments and a working initial create script), but it is possible at least
q
I see. Yah, the script itself is idempotent (e.g. it runs DB migration tools).. so I just need it to run every time. For now I just went with Alex's suggestion and have it always running against an updated timestamp.
s
You can also use https://www.pulumi.com/registry/packages/command/api-docs/local/run/ to run a command every time.
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