CODEWITHSUNDEEP
lua
Wolf
Wolf

Reputation: 183

lua: write result of io.popen to a file?

I would like to take the result of f = io.popen(command) to a file. Is there a way to do it from the file-descriptor f, or do I have to copy the data to a new string and write that via a new file-descriptor?

Upvotes: 2

Views: 1600

Answers (2)

Mike Corcoran
Mike Corcoran

Reputation: 14565

this is about as simple as it's going to get without knowing more about what you're trying to do...

local fout = io.open("/path/to/file", "w+")
f = io.popen(command)
fout:write(f:read("*a"))

Upvotes: 3

Alexander Gladysh
Alexander Gladysh

Reputation: 41403

No standard way to do that in plain Lua. But you always may redirect the output to file in the command itself. (I.e. io.popen("echo foo | tee bar"), or os.execute("echo foo >bar").)

Upvotes: 0

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