Reports

Reports: Columns and Totals: awk, Building a Pipeline a Step at a Time.

Updated November 10, 2026

1. Columns and Totals: awk (Journeyman): awk splits every line into numbered fields, prints the ones you ask for, keeps only the lines that match a condition, and adds up a column, in total or per month, item or address.
2. Building a Pipeline a Step at a Time (Journeyman): Build a long pipeline the way people who write them do, starting with head on a few lines, adding one stage at a time and looking after each, and read someone else's one-liner the same way, from the left.