Bash · Techniques

Chain questions with pipes

Two filters in a row keep the records that pass both questions.

The first filter keeps what is about the item. The second keeps the complaints among them. The question about blue is not a complaint. It drops out.

about_the_item="Is this about the item itself?"
item_means="Its build, size, color, or parts."
other_means="Delivery, price, or service."
complaint="Is this a complaint?"

cat <<'EOF' |
Arrived a day early. Thank you!
The zipper broke the first time I used it.
Does this come in blue?
The strap snapped on day two.
EOF
thinkthen filter "$about_the_item" \
  --batch 1 \
  --true "$item_means" \
  --false "$other_means" |
thinkthen filter "$complaint" --batch 1

Output

The zipper broke the first time I used it.
The strap snapped on day two.

exit 0: the run finished

On GitHub: github.com/botassembly/thinkthen