bash completion for 'service' command on Linux

service-completion.bash

# Add bash completion for services: it tries to complete the service you want
# based on the output of "service --status-all"

# Source this as a separate file from your .bash_profile or just copy and paste into it

# Inspired by http://en.newinstance.it/2011/06/30/ssh-bash-completion/

__service_known_services() {
    service --status-all |awk '{print $1}'
}

_service() {
    local cur known_services
    COMPREPLY=()
    cur="${COMP_WORDS[COMP_CWORD]}"
    known_services="$(__service_known_services)"
    
    if [[ ! ${cur} == -* ]] ; then
      COMPREPLY=( $(compgen -W "${known_services}" -- ${cur}) )
        return 0
    fi
}

complete -o bashdefault -o default -o nospace -F _service service 2>/dev/null \
	|| complete -o default -o nospace -F _service service