I have two text files: File1.txt is: a, b, c, d, e, f1234567890qwertyuiopasdfghjkldfdf a, b, c, c, e, fopasdfghjklfdhdkjdffgfksofbfkdndkfbfbfkf a, b, c, d, e, fdsffdsqwertyuiopasdfghjklfdcfdfd a, b, c, d, e, fqwertyuiopasdfghjkl90reyuebvcd File2.txt is: d,90 k,70 p,450 I would like a perl script to read file2.txt (column[0] and column[1]) and find where it matches in File1.txt(where matches are in column[3] and column[5]), for each line that occurs. The filenames/filepaths need to be hardcoded, as I don't want user to input the files. For example, the expected result would be- I would like the output to be written to another file like this: Output.txt is: a, b, c, d, e, f1234567890qwertyuiopasdfghjkldfdf a, b, c, d, e, fqwertyuiopasdfghjkl90reyuebvcd Thanks in advance