07-11-2011
By the way, the consecutive seds in the pipeline can be simplified: sed 's/,/:/3 ; s/,/:/3'.
That'll save some time in context switches and copying data in and out of kernel/userland buffers.
Regards,
Alister
---------- Post updated at 02:55 PM ---------- Previous update was at 02:53 PM ----------
Also, it seems GNU sort can handle this situation, by automatically creating tmp files during the sorting process. I'm assuming you're not on Linux. If so, and if you are using GNU sort, you should paste the exact error message.
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LEARN ABOUT XFREE86
slapo-valsort
SLAPO-VALSORT(5) File Formats Manual SLAPO-VALSORT(5)
NAME
slapo-valsort - Value Sorting overlay to slapd
SYNOPSIS
/etc/ldap/slapd.conf
DESCRIPTION
The Value Sorting overlay can be used with a backend database to sort the values of specific multi-valued attributes within a subtree. The
sorting occurs whenever the attributes are returned in a search response.
Sorting can be specified in ascending or descending order, using either numeric or alphanumeric sort methods. Additionally, a "weighted"
sort can be specified, which uses a numeric weight prepended to the attribute values. The weighted sort is always performed in ascending
order, but may be combined with the other methods for values that all have equal weights. The weight is specified by prepending an integer
weight {<weight>} in front of each value of the attribute for which weighted sorting is desired. This weighting factor is stripped off and
never returned in search results.
CONFIGURATION
These slapd.conf options apply to the Value Sorting overlay. They should appear after the overlay directive.
valsort-attr <attribute> <baseDN> (<sort-method> | weighted [<sort-method>])
Configure a sorting method for the specified attribute in the subtree rooted at baseDN. The sort-method may be one of alpha-ascend,
alpha-descend, numeric-ascend, or numeric-descend. If the special weighted method is specified, a secondary sort-method may also be
specified. It is an error to specify an alphanumeric sort-method for an attribute with Integer or NumericString syntax, and it is an
error to specify a numeric sort-method for an attribute with a syntax other than Integer or NumericString.
EXAMPLES
database bdb
suffix dc=example,dc=com
...
overlay valsort
valsort-attr member ou=groups,dc=example,dc=com alpha-ascend
FILES
/etc/ldap/slapd.conf
default slapd configuration file
SEE ALSO
slapd.conf(5), slapd-config(5).
ACKNOWLEDGEMENTS
This module was written in 2005 by Howard Chu of Symas Corporation. The work was sponsored by Stanford University.
OpenLDAP 2012/04/23 SLAPO-VALSORT(5)