opcode FileNameFromPath, S, S
S_path xin
i_pos strrindex S_path, “/”
S_name strsub S_path, i_pos + 1
xout S_name
endop
Hi @aspanoz, thanks for posting this, and welcome to the forum. It’s always nice to have native Csound implementations of these things. 
The original function FileNameFromPath did not calculate the filename correctly in osx 
And thank you for your titanic work!