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| 32424d04 C |
1 | DF(1) BSD Reference Manual DF(1) |
| 2 | ||
| 3 | N\bNA\bAM\bME\bE | |
| 4 | d\bdf\bf - display free disk space | |
| 5 | ||
| 6 | S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS | |
| 7 | d\bdf\bf [-\b-i\bin\bn] [-\b-t\bt _\bt_\by_\bp_\be] [_\bf_\bi_\bl_\be | _\bf_\bi_\bl_\be_\bs_\by_\bs_\bt_\be_\bm _\b._\b._\b.] | |
| 8 | ||
| 9 | D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN | |
| 10 | D\bDf\bf displays statistics about the amount of free disk space on the speci- | |
| 11 | fied _\bf_\bi_\bl_\be_\bs_\by_\bs_\bt_\be_\bm or on the filesystem of which _\bf_\bi_\bl_\be is a part. Values are | |
| 12 | displayed in 512-byte per block block counts. If neither a file or a | |
| 13 | filesystem operand is specified, statistics for all mounted filesystems | |
| 14 | are displayed (subject to the -\b-t\bt option below). | |
| 15 | ||
| 16 | The following options are available: | |
| 17 | ||
| 18 | -\b-i\bi Include statistics on the number of free inodes. | |
| 19 | ||
| 20 | -\b-n\bn Print out the previously obtained statistics from the filesys- | |
| 21 | tems. This option should be used if it is possible that one or | |
| 22 | more filesystems are in a state such that they will not be able | |
| 23 | to provide statistics without a long delay. When this option is | |
| 24 | specified, d\bdf\bf will not request new statistics from the filesys- | |
| 25 | tems, but will respond with the possibly stale statistics that | |
| 26 | were previously obtained. | |
| 27 | ||
| 28 | -\b-t\bt Only print out statistics for filesystems of the specified types. | |
| 29 | More than one type may be specified in a comma separated list. | |
| 30 | The list of filesystem types can be prefixed with ``no'' to spec- | |
| 31 | ify the filesystem types for which action should _\bn_\bo_\bt be taken. | |
| 32 | For example, the d\bdf\bf command: | |
| 33 | ||
| 34 | df -t nonfs,mfs | |
| 35 | ||
| 36 | lists all filesystems except those of type NFS and MFS. The | |
| 37 | sysctl(8) command can be used to find out the types of filesys- | |
| 38 | tems that are available on the system: | |
| 39 | ||
| 40 | sysctl vfs | |
| 41 | ||
| 42 | E\bEN\bNV\bVI\bIR\bRO\bON\bNM\bME\bEN\bNT\bTA\bAL\bL V\bVA\bAR\bRI\bIA\bAB\bBL\bLE\bES\bS | |
| 43 | BLOCKSIZE If the environmental variable BLOCKSIZE is set, the block | |
| 44 | counts will be displayed in units of that size block. | |
| 45 | ||
| 46 | B\bBU\bUG\bGS\bS | |
| 47 | The -\b-n\bn and -\b-t\bt flags are ignored if a file or filesystem is specified. | |
| 48 | ||
| 49 | S\bSE\bEE\bE A\bAL\bLS\bSO\bO | |
| 50 | quota(1), statfs(2), fstatfs(2), getfsstat(2), getmntinfo(3), | |
| 51 | fstab(5), mount(8), quot(8), sysctl(8) | |
| 52 | ||
| 53 | H\bHI\bIS\bST\bTO\bOR\bRY\bY | |
| 54 | A d\bdf\bf command appeared in Version 6 AT&T UNIX. | |
| 55 | ||
| 56 | 4th Berkeley Distribution May 8, 1995 1 |