.th DF I 5/31/77 .sh NAME df \*- report disk free space .sh SYNOPSIS .bd df [\c .bd \-uqs ] [\c .bd \-t\c number] [arg ...] .sh DESCRIPTION .it Df prints the number of free blocks on a file system. If no .it args are specified, the free counts of all the mounted file systems are printed. .sp The .bd \-u flag prints the total block size, number of blocks allocated for system information, number of free blocks, number of blocks used and the number of free inodes. .sp The .bd \-q flag determines and prints the number of free blocks on a file system by extracting the free count directly from the file system's superblock. .sp The .bd \-s flag is a silent option which prohibits printing of any results. Error messages and exit status are not effected. .sp The .bd \-t flag followed by a decimal .it number (5 digit maximum) is compared with the number of free blocks. The result of the comparison returns the file system's major and minor device numbers and a single character either .bd Y or .bd N, to indicate if the number of free blocks is greater or less than the requested .it number, respectively (e.g., df \-t 1000 /u8 returns "0 12 Y"). An exit status of 0 is returned for .bd Y and 1 for .bd N. .sp The .it arg can be specified as either the root name of the .bd mounted file system, e.g., "/u8" or the name of the special file corresponding to the particular device (must refer to a disk), e.g., "/dev/rp14". .sh FILES /dev/rf?, /dev/rk?, /dev/rp?, /etc/mnttab .sh "SEE ALSO" icheck(VIII)