lp/sched/FIFO - plan9 - Git at Google

 #!/usr/local/plan9/bin/rc
 9 ls -ptr $* | 9 sed -n -e '/^[0-9][0-9]*\.[1-9][0-9]*$/p'
	#!/usr/local/plan9/bin/rc
	9 ls -ptr $* \| 9 sed -n -e '/^[0-9][0-9]\.[1-9][0-9]$/p'