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Full Discussion: Bdf in HP-UX
Operating Systems HP-UX Bdf in HP-UX Post 302751201 by Yoda on Thursday 3rd of January 2013 11:36:29 AM
Old 01-03-2013
To schedule script every 3 months in crontab:
Code:
0 0 3,6,9,12 * * script

Run bdf, write to a file
Code:
bdf [filesystem] | awk 'NR>1&&NF==5' > out_$(date +%b)

Later you can read from files for each month and compute difference.
 

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bdf(1M) 																   bdf(1M)

NAME
bdf - report number of free disk blocks (Berkeley version) SYNOPSIS
type [filesystem|file] ... ] DESCRIPTION
The command displays the amount of free disk space available either on the specified filesystem for example) or on the file system in which the specified file (such as is contained. If no file system is specified, the free space on all of the normally mounted file systems is printed. The reported numbers are in kilobytes. Options The command recognizes the following options: Display information regarding file system swapping. Report the number of used and free inodes. Display information for local file systems only (for example, HFS and CDFS file systems). Do not sync the file system data on the disk before reporting the usage. Note that the data reported by may not be up to date. Report on the file systems of a given type (for example, or RETURN VALUE
The command returns 0 on success (able to get status on all file systems), or returns 1 on failure (unable to get status on one or more file systems). WARNINGS
If file system names are too long, the output for a given entry is displayed on two lines. The command does not account for any disk space reserved for swap space, or used for the HFS boot block (8 KB, 1 per file system), HFS superblocks (8 KB each, 1 per disk cylinder), HFS cylinder group blocks (1 KB - 8 KB each, 1 per cylinder group), and inodes (currently 128 bytes reserved for each inode). Non-HFS file systems may have other items not accounted for by this command. AUTHOR
was developed by the University of California, Berkeley. FILES
Static information about the file systems. Mounted file system table. File system devices. SEE ALSO
df(1M), fstab(4), mnttab(4). bdf(1M)
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