ds

Berkely的学生写的

#!/bin/sh
# prints out the disk usage summary
# $Id: ds,v 1.2 1999/01/17 19:40:17 ranga Exp $

df -k | grep -v : |
awk '
    BEGIN { total = 0 ; used = 0 ; avail = 0 ; }
	
    NR != 1 { total += $2 ; used += $3 ; avail += $4 ; }

    END {
	printf("%-10s\t%15d\n","Total:",total);
	printf("%-10s\t%15d\t\(%3.2f%% approx.\)\n",\
	    "Used:",used,used/total);
	printf("%-10s\t%15d\t\(%3.2f%% approx.\)\n",\
	    "Available:",avail,avail/total);
    }
'