Question

Using gawk for Windows included in GnuWin32, how do you append the filename to a text file?.

This is an example of what I want:

Filename -> text.txt
"aaaa","bbbb","c"

The result should be:

"aaaa","bbbb","c","text.txt"

Answer 1

It exists (at least in Linux version) a variable FILENAME with the name of the file in process. So use it:

awk '
    BEGIN {
        FS = OFS = ",";
    }
    {
        print $0 OFS "\"" FILENAME "\""
    }
' input-file