using sed to conditionally extract stanzas of a file based on a search string


 
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Old 11-25-2008
using sed to conditionally extract stanzas of a file based on a search string

Dear All,
I have a file with the syntax below (composed of several <log ..... </log> stanzas)
I need to search this file for a number e.g. 2348022225919, and if it is found in a stanza, copy the whole stanza/section (<log .... </log>) to another output file.

The numbers to search for are listed in an input file (easy enough to read that file in one line at a time), but I am having major problems trying to build a conditional instruction using sed to search the file (below) for a particular number and then copy its whole section if a match is found. Thanks.

<log logid="847b00c2190810312356170828/1/1/1">
<category>ProcEngineBL.Normal</category>
<operation>Get</operation>
<target>GsmFlex.Connection</target>
<instance>msisdn=2348022225919</instance>
<user>tester1</user>
<context>sog.Pro/context>
<status>SUCCESSFUL</status>
</log>
<log logid="827b00c43190810312356170828/1/2/1">
<category>ProcEngineBL.Normal</category>
<operation>Set</operation>
<target>GsmFlex.Connection</target>
<instance>msisdn=234802225919</instance>
<user>onwer1</user>
<context>sog.Pro/context>
<status>SUCCESSFUL</status>
</log>
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CH_LAB(1)						    BSD General Commands Manual 						 CH_LAB(1)

NAME
ch_lab -- change/copy label files SYNOPSIS
ch_lab [-S frame spacing] [-start time] [-end time] [-ext file extension] [-extract file] [-extend time] [-f sample frequency] [-lf sample frequency] [-itype file type] [-key key file] [-lablist list of labels] [-length time] [-map map file] [-name feature name] [-class class] [-o output file] [-otype file type] [-pad high | low] [-pos list of labels] [-q timestep] [-range range] [-sed sed file] [fl shift time delta] [-style output stype] [-vocab vocab file] [-verify] [-nopath] [-base] [-combine] [-divide] [-h] input files ... DESCRIPTION
ch_lab copies from one or more input label files to an output label file, optionally performing various operations along the way. The following option flags are recognized: -h Print a summary of usage to standard output. -S frame spacing frame spacing of output -start time start time, in seconds, for label extraction -end time end time, in seconds, for label extraction -ext file extension filename extension to use for multiple output files -extract file extract a single file from a list of files -extend time extend track file by time seconds beyond label file -f sample frequency sample frequency of label file -lf sample frequency sample frequency for labels -itype file type type of input label file: esps htk ogi -key key file key label file -lablist list list of labels to be considered as blank -length time length of track produced, in seconds -map map file label mapping file -name feature name eg. Fo Phoneme -class class name of class defined in op file -o output file output file name -otype file type output file type: xmg, ascii, esps, htk -pad high | low pad with high or low values -pos list list of labels to be regarded as 'pos' -q timestep quantize label timings to nearst value -range range difference between high and low values -sed sed file perform regex editing using sed file fl shift time delta shift the times of the labels -style output style output style e.g. track -vocab file file containing list of words in vocabulary -verify check that only labels in vocab file are in label file -nopath ignore pathnames when searching label lists -base use base filenames for lists of label files -combine -divide SEE ALSO
ch_wave(1) ch_track(1) Edinburgh Speech Tools April 5, 2001 Edinburgh Speech Tools