# bash: test for an interactive shell (Tek-Tips forum)

## Metadata

| Field | Value |
|---|---|
| Institute | Molodetz Institute — Research & Retrieval Division |
| Subject | shell-multiplexer-auto-attach |
| Document type | Source Citation Card |
| Tier | 2 |
| Source title | bash: test for an interactive shell |
| Source URL | https://www.tek-tips.com/threads/bash-test-for-an-interactive-shell.1400118/ |
| Source type | forum thread |
| Date researched | 2026-10-09 |
| Researched by | tai (agent), model: Claude Sonnet 5, on behalf of retoor |
| Research method | Search aggregator result listing (not independently opened or quoted) |
| Confidence | Not independently verified |
| Status | Active |

## Why it's here

Surfaced by the interactive-shell-detection query; another forum thread on the same `$-`/`$PS1` question already covered in depth by the nixCraft and Bash Cookbook dossiers, not individually read.

## Changelog

| Date | Change |
|---|---|
| 2026-10-09 | Logged as consulted-but-not-analyzed. |