bash-completion/blkid

_blkid_module()
{
	local cur prev OPTS
	COMPREPLY=()
	cur="${COMP_WORDS[COMP_CWORD]}"
	prev="${COMP_WORDS[COMP_CWORD-1]}"
	case $prev in
		'-c')
			local IFS=$'\n'
			compopt -o filenames
			COMPREPLY=( $(compgen -f -- $cur) )
			return 0
			;;
		'-o')
			COMPREPLY=( $(compgen -W "value device export full" -- $cur) )
			return 0
			;;
		'-s')
			COMPREPLY=( $(compgen -W "tag" -- $cur) )
			return 0
			;;
		'-t')
			COMPREPLY=( $(compgen -W "token" -- $cur) )
			return 0
			;;
		'-L')
			COMPREPLY=( $(compgen -W "$(cd /dev/disk/by-label/ 2>/dev/null && echo *)" -- $cur) )
			return 0
			;;
		'-U')
			COMPREPLY=( $(compgen -W "$(cd /dev/disk/by-uuid/ 2>/dev/null && echo *)" -- $cur) )
			return 0
			;;
		'-s')
			COMPREPLY=( $(compgen -W "size" -- $cur) )
			return 0
			;;
		'-O')
			COMPREPLY=( $(compgen -W "offset" -- $cur) )
			return 0
			;;
		'-u')
			COMPREPLY=( $(compgen -W "filesystem raid crypto other nofilesystem noraid nocrypto noother" -- $cur) )
			return 0
			;;
		'-n')
			COMPREPLY=( $(compgen -W "$(awk '{print $NF}' /proc/filesystems)" -- $cur) )
			return 0
			;;
		'-h'|'-V')
			return 0
			;;
	esac
	case $cur in
		-*)
			OPTS="-c -d -h -g -o -k -s -t -l -L -U -V -p -i -S -O -u -n"
			COMPREPLY=( $(compgen -W "${OPTS[*]}" -- $cur) )
			return 0
			;;
	esac
	COMPREPLY=( $(compgen -W "$(lsblk -pnro name)" -- $cur) )
	return 0
}
complete -F _blkid_module blkid