Multiple Line search using grep Post: 302233153

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Top Forums UNIX for Dummies Questions & Answers Multiple Line search using grep Post 302233153 by drl on Saturday 6th of September 2008 10:34:21 AM

09-06-2008

Registered User

Hi.

Here are a few solutions to the original problem using cgrep:

Code:

#!/bin/bash -

# @(#) s1       Demonstrate cgrep for complex string matching.

# See:
# http://www.bell-labs.com/project/wwexptools/cgrep/

echo
echo "(Versions displayed with local utility \"version\")"
version >/dev/null 2>&1 && version "=o" $(_eat $0 $1) cgrep
set -o nounset
echo

FILE=${1-data1}

echo " Data file $FILE:"
cat $FILE

echo
echo " Results, match 42, print window pattern backward:"
cgrep -w '^5012' '^4241' $FILE

echo
echo " Results, match 42, print window line backward:"
cgrep -1 '^4241' $FILE

echo
echo " Results, match 50 followed by 4241 across lines:"
cgrep -a "^5012.*\n*.*4241" $FILE

exit 0

Producing:

Code:

% ./s1

(Versions displayed with local utility "version")
Linux 2.6.11-x1
GNU bash 2.05b.0
cgrep (local) - no version provided for ~/executable/cgrep.

 Data file data1:
5012001,100,AUTOBATCH,FEE,DAILYFEE,0,0 1
4241 SERVICE DENIED
5012002,100,AUTOBATCH,FEE,DAILYFEE,0,0 2
4241 SERVICE DENIED
5012003,100,AUTOBATCH,FEE,DAILYFEE,0,0 3
4241 SERVICE DENIED
5012001,100,AUTOBATCH,FEE,DAILYFEE,0,0 4
2001 DIAMETER SUCCESS
5012002,100,AUTOBATCH,FEE,DAILYFEE,0,0 5
2001 DIAMETER SUCCESS
5012003,100,AUTOBATCH,FEE,DAILYFEE,0,0 6
2001 DIAMETER SUCCESS
5012001,100,AUTOBATCH,FEE,DAILYFEE,0,0 7
2001 DIAMETER SUCCESS
5012002,100,AUTOBATCH,FEE,DAILYFEE,0,0 8
2001 DIAMETER SUCCESS

 Results, match 42, print window pattern backward:
5012001,100,AUTOBATCH,FEE,DAILYFEE,0,0 1
4241 SERVICE DENIED
5012002,100,AUTOBATCH,FEE,DAILYFEE,0,0 2
4241 SERVICE DENIED
5012003,100,AUTOBATCH,FEE,DAILYFEE,0,0 3
4241 SERVICE DENIED

 Results, match 42, print window line backward:
5012001,100,AUTOBATCH,FEE,DAILYFEE,0,0 1
4241 SERVICE DENIED
5012002,100,AUTOBATCH,FEE,DAILYFEE,0,0 2
4241 SERVICE DENIED
5012003,100,AUTOBATCH,FEE,DAILYFEE,0,0 3
4241 SERVICE DENIED

 Results, match 50 followed by 4241 across lines:
5012001,100,AUTOBATCH,FEE,DAILYFEE,0,0 1
4241 SERVICE DENIED
5012002,100,AUTOBATCH,FEE,DAILYFEE,0,0 2
4241 SERVICE DENIED
5012003,100,AUTOBATCH,FEE,DAILYFEE,0,0 3
4241 SERVICE DENIED

I augmented the original data file so that one could see which of the duplicate lines were extracted ... cheers, drl

drl

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LEARN ABOUT MINIX

grep

GREP(1) 						      General Commands Manual							   GREP(1)

NAME

       grep - search a file for lines containing a given pattern

SYNOPSIS

       grep [-elnsv] pattern [file] ...

OPTIONS

       -e     -e pattern is the same as pattern

       -c     Print a count of lines matched

       -i     Ignore case

       -l     Print file names, no lines

       -n     Print line numbers

       -s     Status only, no printed output

       -v     Select lines that do not match

EXAMPLES

       grep mouse file	   # Find lines in file containing mouse

       grep [0-9] file	   # Print lines containing a digit

DESCRIPTION

       Grep  searches  one  or	more  files (by default, stdin) and selects out all the lines that match the pattern.  All the regular expressions
       accepted by ed and mined are allowed.  In addition, + can be used instead of * to mean 1 or more occurrences, ? can be used to mean 0 or  1
       occurrences,  and  |  can  be used between two regular expressions to mean either one of them.  Parentheses can be used for grouping.  If a
       match is found, exit status 0 is returned.  If no match is found, exit status 1 is returned.  If an error is detected,  exit  status  2	is
       returned.

SEE ALSO

       cgrep(1), fgrep(1), sed(1), awk(9).

																	   GREP(1)

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