`gcancel` cancels queued/running jobs.
```bash
gcancel [--dry-run] <job_ids>
gcancel completion <shell>
```
`<job_ids>` supports:
- ---
```bash
gcancel 42
gcancel 1,2,3
gcancel 10-20
gcancel --kill 42 # Slurm-style no-op flag (optional)
```
Preview which jobs can be cancelled, and queued/held jobs that depend on them:
```bash
gcancel --dry-run 42
```