| name | awk-range-pattern-edge-case-debugging |
| description | Debugging technique for awk range patterns that collapse when start line matches end pattern |
| version | 1.0.0 |
| source | auto-extracted |
| extracted | "2026-04-12T00:00:00.000Z" |
| metadata | {"tags":["awk","shell-scripting","debugging","regex"]} |
Awk Range Pattern Edge Case Debugging
When using awk range patterns like /start/,/end/, be aware that if a line matches BOTH patterns, the range collapses to a single line instead of spanning multiple lines. Debug by: (1) verify the start and end patterns are mutually exclusive, (2) test the regex independently against sample input, (3) if the start line legitimately matches the end pattern, use a helper that skips the header line and captures subsequent indented/nested lines separately rather than relying on range matching.