command

Language reference / command

Meaning and placement

exec

argv — the program and its arguments, execve, NO shell. Each element substituted independently (the injection-safe form). Shell features (pipes · redirects · globs) live in shell:.

Property	Declaration
Requirement	Optional in this object
Schema location	`/$defs/exec/properties/command`
type	`"array"`

In the same object: capture · cwd · decode · env · shell · stdin Schema source (use the pointer above)

In a source template

Excerpt from templates/docker-report.nika, source lines 49–58. This is a fragment, not a runnable workflow.

illustration

      # SLOT: argv ARRAY form — one program, exactly these arguments. The array
      # is why there is no shell here: no word-splitting, no globbing, nothing
      # to quote wrong. `permits.exec` above is the provable allowlist.
      command: ["docker", "ps", "--all", "--format", "{{.Names}}\t{{.Status}}\t{{.Image}}"]
    on_error:
      # Offline rehearsal · a host with no daemon answers with a literal that
      # LOOKS like the real thing, so `diagnose` reads the same shape either
      # way. Delete this once the daemon is really there.
      recover: "REHEARSAL\tno docker daemon on this host\tn/a"

Templates containing this field

Template	Source
`templates/docker-report.nika`	Line 52
`templates/human-gated-ship.nika`	Line 111

These are literal key occurrences in the source files, not an execution or conformance claim. How to instantiate a template.

Contract and implementation

This page projects the named specification revision. Check released engine status and the validation workflow before running a file. An optional field is not evidence that every engine supports every value. Canonical identity: language:word:command. Spec revision: 5c40ba456c53. How documentation stays connected.

YAML

Language fields

CLI & errors

Data catalogs

Workspace

Documentation system

Tool contracts

Meaning and placement

exec

In a source template

Templates containing this field

Contract and implementation

​Meaning and placement

​exec

​In a source template

​Templates containing this field

​Contract and implementation

Meaning and placement

exec

In a source template

Templates containing this field

Contract and implementation