docker-docs/engine/reference/commandline/unpause.md

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/reference/commandline/unpause/	The unpause command description and usage	cgroups, suspend, container	docker unpause

Usage:  docker unpause CONTAINER [CONTAINER...]

Unpause all processes within one or more containers

Options:
      --help   Print usage

The docker unpause command uses the cgroups freezer to un-suspend all processes in a container.

See the cgroups freezer documentation for further details.