Linux attempt to anonymize

Hello

I've been attempting to use the lua/anonymize_script to do some anonymization of studies. Unfortunately I can't get it to work and I'm not entirely sure why. I'm using the following form

/dgate --modifystudy:,1.2.3.1212.1232,"lua/anonymize_script('199199')"

after running this from a bash cmd line I get the following in the serverlog

Importconverter-1.0 error: lua/anonymize_script

I do have lua installed and up to date. I've also tried several other changes in syntax like escaping the single quotes, giving the full path to the script, removing the double quotes altogether but they all result in the same error.
Does anyone have any suggestions.
BTW running dgate 1.4.19 on centos 7.3

Thanks in advance

marcel
I am still seeing the error . However by adding the entire path to lua script as in:

/dgate --modifystudy:,1.2.3.1212.1232,"/usr/local/dgate/lua/anonymize_script.lua('199199')"

I was able to produce a different error. This was

lua run error /usr/local/dgate/lua/anonymize_script.lua:80: attempt to index local 'f' (a nil value) in 'dofile('/usr/local/dgate/lua/anonymize_script.lua')'

Any other hints or suggestions .
Thanks for looking reviewing this post .

MrJohnathan Bravo

Marcel
Just to help .
on line 52 I had to add the full path to the dgate directory so

local logroot     = "/usr/local/dgate/DicomAnonymized_Log/"

and also I had changed line 79 . the open mode was set to "wt" , and I think it should be "w+" as I could not find any reference in lua documentation on line for a "wt" mode . I also added the assert so I could see the error on the file open.

local f = assert(io.open(logdir .. logfile, "w+"));

Hope this helps.
Mr Johnathan Bravo