capture vacuumdb verbose output

hi there,

i'm trying to log the verbose output of vaccumdb to a
file along with other details, but i only end up with
logging this

-------------------------------------------------------------
Begin vacuum/analyze db at Mon Jun 2 10:37:29 PDT
2003
Vacuuming test
SET autocommit TO 'on';SET vacuum_mem to 51200;VACUUM
VERBOSE ANALYZE
VACUUM
Vacuuming template1
SET autocommit TO 'on';SET vacuum_mem to 51200;VACUUM
VERBOSE ANALYZE
VACUUM
Vacuum / Analyze db successful.
End vacuum/analyze db at Mon Jun 2 10:37:32 PDT 2003
-------------------------------------------------------------

<snip from script>

..
echo
"-------------------------------------------------------------"
> $LOGS_DIR/$log_filename
echo "Begin vacuum/analyze db at `date`" >>
$LOGS_DIR/$log_filename

$PGSQL_HOME/bin/vacuumdb -e -a -z -v >>
$LOGS_DIR/$log_filename
...

</end snip>

so how to log the verbose output to a file. i tried
2>logfile, but that didn't work the way i want it to.

any ideas is really appreciated.

Shankar

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