I have two text files of the same length, in order: one of products, the other of comparison products. I'd like the output to be "product;comparison" for each line. Yes I could throw them in a spreadsheet and export as csv, but I'd like to understand how to do it in bash. The two files are supplied as arguments.
#!/bin/bash file1="$1"; file2="$2"; separator=";"; while read -r product do read -r comp < "$file2"; echo $product $separator $comp >> temp.txt; done < "$file1" tr -d " " < temp.txt | sort > out.txt rm temp.txt
This gives me all the products with the same comparison product! Eg
$: cat out.txt product1;comp1 product2;comp1 product3;comp1
I'm obviously not reading the single line of the comp file properly - what am I doing wrong? How do I read a single line?