This gratuitously uses a "sentinel" (octal 004) which is a technique that I sometimes use when converting more complex input to CSV. I regularly convert (bad)

This gratuitously uses a "sentinel" (octal 004) which is a technique that I sometimes use when converting more complex input to CSV. I regularly convert (bad) HTML and other nonsense to CSV, and this "challenge" was a little too easy; let's have some more difficult CSV tasks! [ -f data.json ]|| ftp -4o data.json https://gist.githubusercontent.com/jorin-vogel/7f19ce95a9a842956358/raw/e319340c2f6691f9cc8d8cc57ed532b5093e3619/data.json && { a=$(echo b|tr b '\004') ; exec sed ' 1i\ name,creditcard /creditcard\":\"./!d; s/.*name\":\"//; s/\"/,/; s/'"$a"'//g; s/creditcard\":\"/'"$a"'/ s/,.*'"$a"'/,/; s/\".*//; ' data.json }