Mini Shell

_renice_module()
{
	local cur prev OPTS
	COMPREPLY=()
	cur="${COMP_WORDS[COMP_CWORD]}"
	prev="${COMP_WORDS[COMP_CWORD-1]}"
	case $prev in
		'-g'|'--pgrp')
			local PGRP
			PGRP=$(ps -ax -opgrp | sed '1d')
			COMPREPLY=( $(compgen -W "$PGRP" -- $cur) )
			return 0
			;;
		'-n'|'--priority')
			COMPREPLY=( $(compgen -W "{-20..20}" -- $cur) )
			return 0
			;;
		'-p'|'--pid')
			local PIDS
			PIDS=$(cd /proc && echo [0-9]*)
			COMPREPLY=( $(compgen -W "$PIDS" -- $cur) )
			return 0
			;;
		'-u'|'--user')
			COMPREPLY=( $(compgen -u -- $cur) )
			return 0
			;;
		'-h'|'--help'|'-V'|'--version')
			return 0
			;;
	esac
	OPTS="--pgrp
		--priority
		--pid
		--user
		--help
		--version"
	COMPREPLY=( $(compgen -W "${OPTS[*]}" -- $cur) )
	return 0
}
complete -F _renice_module renice