디스크사용량을 파티션별로 확인할 때에 용량을 Mbyte단위로 표시하기

[root@command root]# df -m
Filesystem           1M-blocks      Used Available Use% Mounted on
/dev/hda2                 4918      1462      3206  32% /
/dev/hdb1               115947    100299      9758  92% /backup
/dev/hda1                  235         8       215   4% /boot
/dev/hda6               109786     72389     31820  70% /home
none                       250         0       250   0% /dev/shm
/dev/hdc                115950     91343     18717  83% /backup2
/dev/hdd                115950     51229     58831  47% /backup3
[root@command root]#