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Top Forums Shell Programming and Scripting List numerically in ascending order Post 303043210 by baris35 on Tuesday 21st of January 2020 12:15:19 PM
Old 01-21-2020
List numerically in ascending order

Hello,
I am running ubuntu 16.04 and trying to list all files inside a directory, I need to sort them in ascending order. While surfing on the site, I found an old thread but somehow it did not work.
Link

Ascending order with sort -nk2 myfile.txt command gives below output:
Code:
file media_w1956306127_b2500000_0.ts
file media_w1956306127_b2500000_100.ts
file media_w1956306127_b2500000_101.ts
file media_w1956306127_b2500000_102.ts
..
..
file media_w1956306127_b2500000_10.ts
file media_w1956306127_b2500000_110.ts
file media_w1956306127_b2500000_111.ts
..
..
file media_w1956306127_b2500000_699.ts

Other method is a bit longer to do that. (Rename prefix media_w1956306127_b2500000_ in each filename, then, print the file names with for loop, variable from 0 to 699)

Could you please let me know how I may sort it as expected? Maybe sort command takes all strings as alphabet so it does not take into account the value of the string so that listing in ascending order does not give what I expected to get.

Thank you
Boris
 

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SLAPO-VALSORT(5)						File Formats Manual						  SLAPO-VALSORT(5)

NAME
slapo-valsort - Value Sorting overlay to slapd SYNOPSIS
/etc/openldap/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 not returned in search results unless the valsort control is specified (1.3.6.1.4.1.4203.666.5.14). The valsort control requires a value consisting of a Sequence that contains a boolean flag. The weighting factor is only returned if the boolean value is TRUE. In lber-encode(3) format, the required value must conform to "{b}" syntax. 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 To invoke ldapsearch(1) with the valsort control, the control value must be set appropriately. The following octets represent the desired "{b}" encoding: 0x30 0x03 0x01 0x01 0xff The control can be sent from the command-line using the base64 encoding of the value: ldapsearch -E 1.3.6.1.4.1.4203.666.5.14=::MAMBAf8= FILES
/etc/openldap/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 2.4.39 2014/01/26 SLAPO-VALSORT(5)
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