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huqizhong@huqizhong-desktop:/$ df
Filesystem           1K-blocks      Used Available Use% Mounted on
/dev/sda2              9690348   2405832   6796140  27% /
varrun                  509556       128    509428   1% /var/run
varlock                 509556         0    509556   0% /var/lock
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huqizhong@huqizhong-desktop:/$ df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda2             9.3G  2.3G  6.5G  27% /
varrun                498M  128K  498M   1% /var/run
varlock               498M     0  498M   0% /var/lock
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