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Full Discussion: how to sed with tail
Top Forums UNIX for Dummies Questions & Answers how to sed with tail Post 82249 by zazzybob on Tuesday 30th of August 2005 05:27:01 AM
Old 08-30-2005
Using the shell, i'd do something convoluted like this
Code:
$ cat ./redlotus.sh
#!/bin/ksh

matchfile="redlotus.txt"

matches=`echo "${line}" | egrep -in "Error|Exception" ${matchfile}`
echo "${matches} " | while read line; do
   lineno=`echo "${line}" | cut -d: -f1`
   match=`echo "${line}" | cut -d: -f2`
   echo "Match found - line ${lineno} - ${match}"
   minline=$(( lineno - 5 ))
   [[ "$(( lineno - 5 ))" -lt 1 ]] && minline=1
   sed -n "$minline,$(( lineno - 1 ))p" ${matchfile}
   sed -n "$lineno p" ${matchfile}
   sed -n "$(( lineno + 1 )),$(( lineno + 5 ))p" ${matchfile}

   # note we could just do
   # sed -n "$minline, $((lineno + 5))p" ${matchfile}
   # but i've left this as-is to show you how to grab the previous, and the
   # next, five lines....
done
exit 0

No doubt, there is a far easier way (using -C option to GNU (e)grep for example)....

Cheers
ZB
 

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LEARN ABOUT DEBIAN

ch_lab

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
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