It occurred to me that a non-general solution is very easy. All you need is a control file with line numbers. You paste the control file on to the output from bdf, sort, then cut away the line numbers. I am not on an HP-UX system, so to demo this, first I need an ersatz bdf command.
Code:
$ export PATH=$PATH:.
$ cat bdf
#! /usr/bin/sed 1d
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol3 524288 211800 310104 41% /
/dev/vg00/lvol1 1048576 792464 254216 76% /stand
/dev/vg00/lvol7 4194304 2111048 2066992 51% /var
/dev/vg00/lvol6 5275648 4324952 943312 82% /usr
/dev/vg00/lvolu3 30736384 3901997 25157825 13% /u03
/dev/vg00/lvolu2 27033600 21665312 5034033 81% /u02
/dev/vg00/lvolu1 20480000 16962500 3298935 84% /u01
/dev/vg00/lvol5 229376 103248 125280 45% /tmp
/dev/vg00/lvol4 4620288 3775088 838648 82% /opt
/dev/vg00/lvol8 1048576 141744 899856 14% /home
/dev/vg00/lvolu4 5144576 2148221 2809135 43% /u04
$
$
$
$ cat control
01
02
03
04
05
11
10
09
06
07
08
12
$
$
$
$ bdf
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol3 524288 211800 310104 41% /
/dev/vg00/lvol1 1048576 792464 254216 76% /stand
/dev/vg00/lvol7 4194304 2111048 2066992 51% /var
/dev/vg00/lvol6 5275648 4324952 943312 82% /usr
/dev/vg00/lvolu3 30736384 3901997 25157825 13% /u03
/dev/vg00/lvolu2 27033600 21665312 5034033 81% /u02
/dev/vg00/lvolu1 20480000 16962500 3298935 84% /u01
/dev/vg00/lvol5 229376 103248 125280 45% /tmp
/dev/vg00/lvol4 4620288 3775088 838648 82% /opt
/dev/vg00/lvol8 1048576 141744 899856 14% /home
/dev/vg00/lvolu4 5144576 2148221 2809135 43% /u04
$
$
$
$ bdf | paste control - | sort -n | cut -f2
Filesystem kbytes used avail %used Mounted on
/dev/vg00/lvol3 524288 211800 310104 41% /
/dev/vg00/lvol1 1048576 792464 254216 76% /stand
/dev/vg00/lvol7 4194304 2111048 2066992 51% /var
/dev/vg00/lvol6 5275648 4324952 943312 82% /usr
/dev/vg00/lvol5 229376 103248 125280 45% /tmp
/dev/vg00/lvol4 4620288 3775088 838648 82% /opt
/dev/vg00/lvol8 1048576 141744 899856 14% /home
/dev/vg00/lvolu1 20480000 16962500 3298935 84% /u01
/dev/vg00/lvolu2 27033600 21665312 5034033 81% /u02
/dev/vg00/lvolu3 30736384 3901997 25157825 13% /u03
/dev/vg00/lvolu4 5144576 2148221 2809135 43% /u04
$
