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Full Discussion: Copying Text between two unique text patterns
Top Forums UNIX for Dummies Questions & Answers Copying Text between two unique text patterns Post 302119187 by drl on Monday 28th of May 2007 03:15:15 PM
Old 05-28-2007
Hi.

For the sample data file "data1":
Code:
Document * of 20
Hello

=====
Document one of 20

World

=====
Document 44 of 20

Now is

=====
Document "Climatology Review" in of 20

with no Documents at the beginning of the time.

=====

I ran this script:
Code:
#!/bin/sh

# @(#) s1       Demonstrate csplit.

F=${1-data1}

csplit -k -s -z $F "/^Document.*of/" {\*}

echo
for file in xx*
do
        echo
        echo "File: $file"
        head -3 $file |
        cat -n
done

exit 0

To produce this:
Code:
% ./s1


File: xx00
     1  Document * of 20
     2  Hello
     3

File: xx01
     1  Document one of 20
     2
     3  World

File: xx02
     1  Document 44 of 20
     2
     3  Now is

File: xx03
     1  Document "Climatology Review" in of 20
     2
     3  with no Documents at the beginning of the time.

This assumes that the lines "=====" are visual sugar ... cheers, drl
 

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LEARN ABOUT DEBIAN

snscan

snscan,v0.3.8(8)					      System Manager's Manual						  snscan,v0.3.8(8)

NAME

       snscan - display information on articles in the spool
       sncat - display articles in the spool
       sncancel - cancel articles in the spool

SYNOPSIS

       snscan [options] articlespec...
       sncat [options] articlespec...
       sncancel [options] articlespec...
       options: [-n] [-s since] [-o outputfile]

DESCRIPTION

       snscan displays information on all articles specified by articlespec, in the form
	      newsgroup serial id
	      on a line, one line per article matched.	This output is suitable for feeding to snprimedb.

       sncat  displays the articles specified by articlespec.

       sncancel
	      marks articles specified by articlespec as canceled, so they become unavailable to sn programs.

ARGUMENTS

       articlespec defines a broad pattern for articles.  It takes two mutually exclusive forms.

       Specify by newsgroup and serial number
	      Here articlespec is
	      newsgroup[:range[,range]...]
	      where each range is
	      serial[-[toserial]]
	      (where  toserial	is  greater than serial).  If toserial is omitted, then all articles after serial are matched.	If both serial and
	      toserial are empty, then only the first and last articles are matched.

       Specify by articles message ID
	      Here articlespec is -i id...
	      where each id is a message ID, angle brackets optional.

OPTIONS

       -n     This option weeds out articles that are aliases.	If an article is crossposted, there will be an original copy, the others  will	be
	      aliases to it.  This option prevents information being displayed if it is not from the original copy.

       -ssince
	      This option weeds out articles that were obtained before since.  since is in the format year/month/day[:hour:minute] where each is a
	      number.  year may be 2 or 4 digits, and / and : can be any non-digit character.

       -ooutputfile
	      Write output to outputfile instead of descriptor 1.  Sometimes you just don't feel like using the shell.

EXAMPLES

       sncancel linux.lemmings:12
	      Cancel article 12 from linux.lemmings.

       snscan linux.lemmings:4,12-
	      Display information on article 4, and also articles 12 to the most recent article, from linux.lemmings.

       sncat -n -s 1998/4/1 linux.lemmings
	      Display all articles that are not aliases, and which were entered after April 1 1998, from linux.lemmings.

       snscan -i '123@myhost'
	      Display information on the article whose ID is <123@myhost>, in whichever newsgroup it is found.

FILES

       Each articlespec or id on the command line refers to articles in the news spool located in /var/spool/sn.

ENVIRONMENT VARIABLES

       SNROOT If this is set and is not empty, the value is used in place of /var/spool/sn, the default news spool directory.

EXIT CODES

       snscan exits 0 on success, 1 on usage error, 2 on system error, and 3 on other errors.  It is not an error to specify an article that  does
       not exist, or which does not meet the since criterion.

SEE ALSO

       snprimedb(8)

N.B.								    Harold Tay							  snscan,v0.3.8(8)
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