I have a JavaScript snippet to get the latest transaction to/from an account. After starting the geth instance, I did this in the interactive JS console:

jsFunction is a function in filename.js

<Returns the results as expected>

But when I try to do the same using the Non-interactive mode, it fails:

$ geth --exec 'loadScript("/path/to/file/filename.js")' attach ipc:/path/to/ipc
$ geth --exec 'jsFunction(<parameters>)' attach ipc:/path/to/ipc
ReferenceError: 'jsFunction' is not defined
    at <anonymous>:1:1

I ran the same command (geth --exec) with normal web3.js functions like eth.getTransaction, eth.getBlock and it works fine. I don't understand what's wrong with executing custom scripts. Does geth client support this functionality? Am I missing something?

P.S: I am running a private blockchain but didn't mention --datadir, --networkid, and --genesis etc. in the above commands for readability.

  • 2
    I think you should do everything in a single line geth --exec 'loadscript("/path/to/file/filename.js"); jsFunction(<params>); ' attach ipc:/path/to/ipc
    – Ismael
    Jun 24, 2016 at 19:24
  • 1
    No it is a typo error. It is LoadScript not loadscript
    – Ellis
    Jun 24, 2016 at 19:27

1 Answer 1


Each geth exec start one interpreter. So if you define a function into the first, it is not available on the second... Please merge them into one exec:

To sum up:

 geth --exec 'loadScript("/path/to/file/filename.js"); jsFunction(...)' attach

This also worked:

geth --exec "loadscript(\"/path/to/file/filename.js\");jsFunction(<params>)" attach ipc:/path/to/ipc
  • 1
    I am not trying to execute a contract. My question is specific to custom JS code. The eth.compile.solidity is a built-in web3.js function.
    – galahad
    Jun 24, 2016 at 19:14
  • 1
    Tried changing ' to " and also tried changing 'loadScript("/path/to/file/filename.js")' to "loadScript(\"/path/to/file/filename.js\")". Still getting the same error.
    – galahad
    Jun 24, 2016 at 19:22
  • 1
    Oops. Please ignore the typo. I executed it correctly with a capital S. Still no luck.
    – galahad
    Jun 24, 2016 at 19:27
  • 1
    Warning: if you have two different exec, these are two different context. So it is like playing with two distinct interpreters.
    – Ellis
    Jun 24, 2016 at 19:30

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