hello,everyone,i can use exec node to do something like remove a file in linux (example:rm xxx.txt), but it cant download a node module(like npm install node-red-node-mysql)
have a good way to do that?
What error does that return?
Check the other outputs of the exec node.
Why are you using -g? Normally that would need sudo permissions to run. Also you have selected Append msg.payload, what have you got in the payload that you are appending to the command?
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As @Colin says, the Exec node has three output ports. Connect them all to a Debug node to see the output - any error messages from the command will be emitted from the second port.
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You can see the command it is running has 155549101984 at the end.
That is because, just as @Colin said in his reply, you have the append msg.payload option enabled in the Exec node - so it is adding the timestamp from the Inject node to the end of the command.
Disable that option in the Exec node and it should work.
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thank you very much,i will try it
（my emotion now）
thank you very much
