Stop every running Docker container with Nu’s splat operator
Stop all running containers in one command using nushell’s splat operator:
docker stop ...(docker ps -q | lines)Stage by stage
| Stage | What it does |
|---|---|
docker ps -q |
Prints only the container IDs, one per line (quiet mode, no headers) |
| lines |
Splits that text into a nushell list of IDs |
...(...) |
The splat operator expands the list into separate positional arguments |
docker stop ... |
Stops every container in a single invocation |
It effectively expands to:
docker stop <id-1> <id-2> <id-3>Why splat is the trick
docker ps -q returns text, while docker stop wants individual arguments.
lines turns the text into a list, and ... (splat) flips that list back into
separate arguments — no for loop, no xargs.
Gotchas
docker ps -qlists only running containers; stopped ones are not included.docker stopis graceful: it sends SIGTERM first, then SIGKILL after the stop timeout.- If nothing is running, the splat expands to zero arguments and
docker stoperrors out. Guard the count first if you want to stay clean:docker ps -q | lines | length - To stop and remove in one go, use
docker rm -f ...(docker ps -aq | lines)— the-aflag includes stopped containers too.
Related
- nushell-sys-net-ip — same
where/getfilter syntax on structured data