Lua: specify file name with variables

Question

I'd like to specify a filename based on a different id number. How can I set different a file name according to a different id value?

id = args.bdp_id
filename = "./temp/vtx_vel%d.dat", id
print (filename)

Ben Grimm · Accepted Answer · 2015-02-09 23:53:05Z

3

See string.format if you want to use sprintf style substitutions:

filename = string.format("./temp/vtx_vel%d.dat", id)

answered Feb 9, 2015 at 23:53

Ben Grimm

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Comments

ohmu · Accepted Answer · 2015-02-12 17:10:37Z

3

You can do it like this:

filename ="./temp/vtx_vel"..id..".dat"

ohmu

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answered Feb 9, 2015 at 23:52

user4516901