Error naming output files from macro

[Martin Valuet]

Hello,

looping over a series of input files, I want to create a series of output files and name them using a macro.

Based on this post, I wrote this code:

foreach f of local files_DAX {

    use `f', clear

[Part of the code that works properly]

    tempvar newfilename
    gen `newfilename' = index + "_" + name_short + "_" + isin + "_" + string(year)  + ".dta"
    disp `newfilename'

* Save cleansed dataset

    save "/mnt/HDD/martin/Xetra Database/Output Data/2012/DAX/`newfilename'", replace

The macro generates the proper name for the output file. However, the output file itself does not receive the proper name, as I get the following ouput:

DAX_ADIDAS_DE000A1EWWW0_2012.dta
file /mnt/HDD/martin/Xetra Database/Output Data/2012/DAX/__000000.dta saved

DAX_MERCK_DE0006599905_2012.dta
file /mnt/HDD/martin/Xetra Database/Output Data/2012/DAX/__000001.dta saved

DAX_SIEMENS_DE0007236101_2012.dta
file /mnt/HDD/martin/Xetra Database/Output Data/2012/DAX/__000002.dta saved

etc.

I suppose that there is an issue with the quote marks, but my other attempts did not produce any output file at all.

What am I doing wrong?

Best,
Martin