Combine the lines from two files in every combination. Apparently that's called the cartesian product but don't quote me on that.
▶ go get -u github.com/tomnomnom/comb
Or download a binary and put
it somewhere in your
▶ comb -h Combine the lines from two files in every combination Usage: comb [OPTIONS] <prefixfile> <suffixfile> Options: -f, --flip Flip mode (order by suffix) -s, --separator <str> String to place between prefix and suffix
▶ cat prefixes 1 2 ▶ cat suffixes A B C ▶ comb prefixes suffixes 1A 1B 1C 2A 2B 2C
Flip mode (order by suffix):
▶ comb --flip prefixes suffixes 1A 2A 1B 2B 1C 2C
▶ comb --separator="-" prefixes suffixes 1-A 1-B 1-C 2-A 2-B 2-C
Can't you just do this with a couple of nested bash loops?
Yes, but it's a PITA to type this:
▶ while read prefix; do while read suffix; do echo $prefix$suffix; done < suffixes; done < prefixes 1A 1B 1C 2A 2B 2C